Elizabeth Webb (1663-1726) was a minister of the Society of Friends, wife of Richard Webb of Gloucestershire, England, and later of Birmingham Township, Chester County, Pennsylvania. Her journal is a record of Webb's first visit to America in 1697 with her companion, Mary Rogers.

Aaron A. Maple (1866-1938) was an asbestos building supplies traveling salesman for the Ohio branch of the Asbestos Shingle, Slate & Sheathing Co. This small collection contains fourteen of Maple's personal diaries from 1920 to 1936 (with some gaps) that document his home life, expenses, work, and travel throughout the northern and northwestern parts of the state.

Francis Bannerman Son was a major purveyor of military goods to sportsmen and collectors in New York City over three generations. The collection consists of Bannerman family's personal papers, correspondence, travel diaries, and financial documents concerning Bannerman Island.

The Bauduy family was associated with the prominent du Pont family, who immigrated to the United States from France in 1802 and established the E.I. du Pont de Nemours & Company, which manufactured gunpowder at mills on the banks of the Brandywine River just north of Wilmington, Delaware. Peter Bauduy (1769?-1833), a French refugee from Santo Domingo who was a partner of Eleuthère Irénée "E.I." du Pont (1771-1834). This collection contains correspondence of Hélène Bauduy (1806-1881), Peter Bauduy's daughter, and Alexandre Aristide Bretton de Chapelles (1799-1850), and a journal kept by Eulalia Keating (1801-1873), Bauduy's daughter-in-law.

Charles H. Mason (1886–1949) was employed for thirty-five years by Pierre S. "P.S." du Pont (1870-1954), the industrialist, entrepreneur, philanthropist, and horticulturalist who developed Longwood Gardens in Kennett Square, Pennsylvania. Mason worked as chief chauffeur and garage manager for du Pont. He lived with his family in a residence called "The Anvil" on the property at Longwood Gardens. This small collection includes Charles H. Mason and Marguerite Mason's journals (dictated by them and handwritten by Ann Mason, Charles Mason's sister) describing their early years in Lewes, Delaware.

Crawford H. Greenewalt (1902-1993) was an executive with the DuPont Company and president of the firm from 1948 to 1962. In 1942, when the DuPont Company agreed to participate in the Manhattan Project, Greenewalt was named chief liaison, working with the physicists at the University of Chicago Metallurgical Laboratory, including Arthur Compton (1892-1962) and Enrico Fermi (1901-1954), who were developing techniques for plutonium separation. The collection consists of eight volumes of Greenewalt's diaries, which describe the history of the Manhattan Project and the development of the United States' first atomic bombs that were used to end the Second World War. The diaries describe the technical history of the project, as well as the relationships that developed between scientists.

Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828) had four daughters. This group of materials within the Winterthur Manuscripts collection contains the papers of the three eldest: Victorine (du Pont) Bauduy (1792-1861), Evelina (du Pont) Bidermann (1796-1863), and Eleuthera (du Pont) Smith (1806-1876), as well as their respective husbands: Ferdinand Bauduy (1791-1814), James Antoine Bidermann (1790-1865), and Thomas MacKie Smith (1809-1852). Victorine du Pont Bauduy and Eleuthera du Pont Smith were teachers at the Brandywine Manufacturers' Sunday School (BMSS), a nonsectarian school offering classes in reading, writing, arithmetic, and Bible lessons. Evelina du Pont Bidermann spent much of her adult life traveling alongside her husband and then building the Winterthur mansion in Delaware. Their papers document details about their education, social life, family, attitudes, and activities through incoming and outgoing correspondence, as well as personal papers such as diaries and account books.

Emma E. Holmes (1838-1910) was the daughter of Dr. Henry M. Holmes (1790-1854) and Eliza Ford Gibbes (1808-1875). The diary chronicles Holmes's life in Charleston, South Carolina, during the Civil War, detailing the Charleston fire of December 1861, visiting army camps, taking a position as governess and tutor, and plundering Union troops near the end of the war.

Errett McLeod Graham (1877-1974) was a civil engineer for various railroads. He was married to Helena "Lena" Washburn Graham (1881-1970) for nearly sixty-six years. Helena Graham was a homemaker to the couple's three children. The Grahams spent the early years of their marriage in remote railroad construction camps and small towns in Tennessee and West Virginia before settling in Rensselaer, Indiana. This item is a single-volume diary handwritten by both Errett and Lena Graham in 1910 while living in Tunnelton, West Virginia, were Errett was working for the Baltimore & Ohio Railway Company. The diary would be of interest to those researching women's studies, railroad history, and civil engineering.

Frank G. Tallman (1860-1938) was an executive of E.I. du Pont de Nemours & Co. The collection includes personal and business papers of Tallman such as diaries, letter books, and correspondence files.

Gabrielle Crofton (1873-1952) was the daughter of Gabrielle Josephine Shubrick (1835-1894) and Robert Erskine Anderson Crofton (1834-1898), and the great-granddaughter of Victor Marie du Pont (1767-1827), a prominent French American diplomat and businessman. The collection consists of two diaries, dating from 1917 to 1926, and reflect the leisured life of a middle-class, unmarried woman in the first quarter of the twentieth century United States.

This diary's author is not given; however, many details indicate that the writer is likely Thomas R. Robinson (1889-1972), a thirty-two-year-old farmer mainly working as a coal miner, lumberman, and railroad worker. This item is a manuscript handwritten diary. The entries are dated February 20, 1922, through April 9, 1923; these include the weather, who the author worked beside each day, his duties and responsibilities, and other tasks he took upon himself to fulfill. This item will be of significant interest to labor historians wanting a view of daily life from the worker's point of view.

Henry Belin du Pont (1898-1970) was a research engineer with General Motors and the vice president of E.I. du Pont de Nemours & Company from 1939 to 1963. This collection contains correspondence from several generations of the family from the early nineteenth through the twentieth century, including Francis Gurney Smith (1784-1873), Elizabeth (Eliza) MacKie Smith (1787-1861), Joanna Smith du Pont (1815-1876), Frances du Pont Coleman (1838-1902), Eleuthera "Ella" du Pont Bradford (1848-1906), Eleuthera Bradford du Pont (1873-1953), Alicia Bradford Maddox (1875-1920) and Phoebe George Bradford (1794-1840).

Harry O. Sooy (1875-1927) worked at Berliner Gramophone Company and Victor Talking Machine Company and was involved in the development of American sound recording. His papers contain a diary photocopy that is either a typed original or transcript of a diary that Sooy kept from the time of his employment with Eldridge R. Johnson (1867-1945) from 1898 to the end of 1925. Also included are four miscellaneous items: formula for grading and grinding precious stones, regulations governing the Victor Cooperative Beneficial Association, Red Cross benefit concert, and United War Work Campaign concert.

Merchant and paper manufacturer Joshua Gilpin (1765-1841) established the first paper mill in Delaware near Wilmington in partnership with his brother, Thomas (1776-1853), and uncle, Miers Fisher. Gilpin traveled extensively abroad from 1795 to 1801. The collection consists of 62 pocket journals and notebooks, the bulk of which date from Gilpin's European tour from 1795 to 1801.

Keith Reeves Rodney (1875-1956) was a metallurgist at the Fairmount Steel Company in Philadelphia. His diaries document his 1905 European tour of a number of steel mills and machine shops. He visited Italy, France, Germany, and England.

The Elmer Sperry papers contain a complete record of his published patents and his laboratory notebooks. These notebooks, which do have some gaps, can be used to trace the evolution of Elmer Sperry's approach to arc lighting, street railways, electrochemistry, gyroscopic technology, internal combustion engines, and the technological problems he encountered with each of these projects. Sperry was very articulate in his diaries and explored a variety of technological and scientific issues in them. It is evident that he drew on the work of a number of academic physicists and mathematicians and tried to apply their insights to experimental problems. Sperry's diaries contain a large number of sketches which reflect an appreciation of modern science. However, the diaries also show that in many ways Sperry was a nineteenth-century artist-engineer rather than a modern scientist whose insights are based on mathematical models.

The author appears to have been a young man living on his mother's farm near Danville, Montour County, Pennsylvania, who earned additional money by casual day labor. The diary is a standard pocket diary of the period with notations of work done and other daily activities, with a small cash book section at the rear.

The Lainé family was related to Peter Bauduy (1769-1833) a French refugee from Santo Domingo who was a business partner of Eleuthère Irénée "E.I." du Pont (1771-1834) of the DuPont Company. The family papers contain items from several generations and include a diary from Pierre-Francois Lainé's (1775-1846) captivity in Russia, Francois Damas Laine'ś (1823-1901) diary from his visit to France, Marie Lainé Santa Maria's (1866-1961) memoirs as a child living on a sugar plantation in Cuba, translation, and typescripts of the diaries, and genealogical information.

Manigault's papers consist of her own diaries and correspondence between her and Gabrielle Josephine du Pont (1770-1836), both which document the life of a female member of Charleston's merchant-planter elite during the Early National Period, and the web of connections linking Charleston, New York and Philadelphia society.

Martha Brown Ogle Callender Forman (1788-1864) was the second wife of Gen. Thomas Marsh Forman (1758-1845). Her diaries are entirely personal, with many details of the daily life of enslavers and the enslaved at Rose Hill, a Cecil County, Maryland plantation.

Martha Furnace was an iron plantation built in 1793 by the Pennsylvania ironmaster Isaac Potts (1750-1803) on a branch of the Wading River two miles above Harrisville in eastern Burlington County, New Jersey. The volume is a combined daybook and diary, containing a comprehensive account of the operation of a Pine Barrens iron plantation during the early 1800s.

May du Pont Saulsbury (1854-1927) was a leading hostess in Washington, D.C. during the Wilson administration, philanthropist, and wife of Senator Willard Saulsbury (1861-1927). The journal covers the couple's summer trip to Europe in 1919, coinciding with the signing of Treaty of Versailles.

The Wilson and du Pont families were prominent families in the Wilmington, Delaware area. The papers document the daily activities of three generations of Natalies: Natalie Green Driver (Wilson)(1846-1912), Natalie Driver Wilson (du Pont)(1877-1918), and Natalie Wilson du Pont (Edmonds)(1904-1975).

Paul J. Ganahl (1916-2002) was an electrical engineer who served in the United States Air Force. This item is a manuscript diary kept by Ganahal between January 2, 1953, and December 31, 1953, while working as an electrical engineer performing aerial photography tests for the United States Air Force in California and New Mexico. The daily entries are bullet lists of film rolls develped, problems found, people met with or spoken to, flight test details, and places traveled. The diary provides technical information about the develpment of reconnaissance photography, engineering challenges, and project team communication.

This collection consists of a microfilm of volume twenty-four of the diary of Phoebe George Bradford (1794-1840), a native of Cecil County, Maryland, and resident of Wilmington, Delaware. The diaries contain descriptions of social doings and daily activities, opinions on family matters and religion, and occasional references to national matters and local happenings.

This collection consists of a microfilm volumes one and two of the diaries of Phoebe George Bradford (1794-1840), a native of Cecil County, Maryland, and resident of Wilmington, Delaware. The diaries contain descriptions of social doings and daily activities, opinions on family matters and religion, and occasional references to national matters and local happenings.

This collection consists of microfilms of volumes 1, 6-10, 15, 16, and 24 of the diaries of Phoebe George Bradford (1794-1840), a native of Cecil County, Maryland, and resident of Wilmington, Delaware. The diaries contain descriptions of social doings and daily activities, opinions on family matters and religion, and occasional references to national matters and local happenings.

This collection consists of photocopies of volumes 7-10, 15, 16, and 24 of the diaries of Phoebe George Bradford (1794-1840), a native of Cecil County, Maryland, and resident of Wilmington, Delaware. The diaries contain descriptions of social doings and daily activities, opinions on family matters and religion, and occasional references to national matters and local happenings.

World's Fairs or International Expositions are large-scale exhibitions highlighting technology, agriculture, and other innovations of national or cultural significance. The New York World's Fair occurred in Flushing Meadows, Queens, from April 30, 1939, to October 31, 1940. The theme was "The World of Tomorrow." This souvenir diary and photograph album combines official drawings and photographic images of buildings at the 1939 New York World's Fair with a personal photograph album and diary section, in which the reader was to record his or her own memories of the fair. The diarist who completed this souvenir remains unidentified.

Samuel Francis du Pont (1803-1865) was a Rear Admiral in the United States Navy and fought in the Mexican-American War and the Civil War. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The collection is a microfilmed copy of excerpts from du Pont's journal as a midshipman aboard the Congress.

The Savery family of Chester County, Pennsylvania, produced two generations of eminent mechanical engineers. Savery family papers consists of materials of the eldest son William H. Savery's (1865-1949) diaries, his father Thomas H. Savery (1837-1910) correspondence and notebooks documenting his career as a mechanical engineer, and the documents relating to Savery/Webb family property near Longwood Gardens, Hamorton and Parkerville, Pennsylvania.

The Crofton and Shubrick families were descendants of a prominent French American diplomat and businessman, Victor Marie du Pont (1767-1827), and represent middle-class American women in the nineteenth and twentieth centuries. This collection primarily consists of the papers of Gabrielle Josephine Crofton (1873-1952) and Mary Ethel Crofton Hunt (1875-1962), daughters of Gabrielle Shubrick Crofton (1835-1894) and Robert E.A. Crofton (1834-1898). It includes diaries, autograph book, notebook, and letters.

Simon Bolivar Camacho (1859-1906) was a traveling sales representative for the American Bank Note Company, a dominant American producer of bank notes, stock and bond certificates and similar commercial paper. The collection includes his diaries between 1892 and 1904, mostly relating to business travels in Latin America, but also containing information on daily events in the New York City area, news of the day, and domestic, personal and religious reflections.

Sophie du Pont Ford (1871-1957) was the daughter of Victor du Pont (1828-1888) and Alice Hounsfield du Pont (1833-1904) and the wife of Bruce Ford (1873-1931). Her papers consist primarily of her diaries but also include a scrapbook with news clippings relating to the DuPont Company, an address book with family birth dates, and a book with watercolor and text entitled "Life of Branch H. Giles."

Personal and business diaries of Thomas Savery documenting his career from 1864 to 1910 that include technical drawings and experimental data used in developing his patented papermaking machinery. Savery's career as machine shop foreman and general manager at Pusey & Jones is also described. The day to day activities of the shops in which he worked are detailed as well as his income, expenses, and investments. Among projects noted is the construction of Machinery Hall at the 1876 Centennial Exhibition. There are also discussions of his involvement in the Harper Ferry Electric Light & Power Company, York Haven Water & Power Company and York Haven Paper Company. There is a volume detailing his involvement in the Denver pulp and paper industry. Savery's involvement with the Wilmington Board of Trade and the Society of Friends are described in these volumes. There are also numerous notations on his personal and cultural life.

Thomas H. Savery (1837-1910) was president of Pusey, Jones and Company, a ship builder and manufacturer of papermaking machinery in the late nineteenth and early twentieth centuries. Thomas H. Savery, Jr. (1871-1930), the second son of Savery, followed in his father's footsteps in the pulp and paper industry. The records consist of two private journals from the youth of Thomas H. Savery and his son, Thomas H. Savery, Jr.

Thomas H. Savery (1837-1910) was president of Pusey, Jones and Company, a shipbuilder and papermaking machinery manufacturer in the late nineteenth and early twentieth centuries. In 1864 he married Sarah Pim Savery (1837-1928). This collection consists of ther business and personal papers of Thomas H. Savery, primarily related to his papermaking machinery ventures, and twenty-nine diaries of Sarah Pim Savery.

Walter D. Gernet (1878-1928) was a civil engineer who worked for the Public Works Department in Philadelphia for fifteen years. After losing his position in 1918, he spent his remaining ten years working various engineering jobs. This collection of Gernet's diaries chronicles his daily life and covers eight years from the end of World War I until 1925. The diaries offer a view of an average workingman's day-to-day activities in a large urban center. This collection of diaries would be of great interest to social historians, especially those focused on early twentieth-century life in the greater Philadelphia area. Its detail encompasses work, family life, and interactions between family members and friends in the wider community.

Walter Ervin Burton (1903-1995) was a technical writer, photographer, and inventor. He worked as a staff photographer and reporter for the Akron Times, Time Press, and Herald Publishing Companies. He became a freelance writer in 1927, contributing hundreds of articles to various magazines. This collection consists of nine handwritten diaries detailing the life and work of Walter E. Burton. As a freelance writer and inventor, Burton worked at home, creating and/or researching mechanical projects and writing them up for journals. He spent much of his time puttering and experimenting in his basement, meticulously recording each project, its completion, amounts paid him, etc. All of the diaries contain full-page entries for each day of the year. The run of diaries is incomplete; years included are 1957, 1960 to 1962, 1982, and 1984 to 1987. Researchers interested in the development and process of analyzing the mechanics of devices would find this collection of particular significance.

William H. Savery (1865-1949) was a paper manufacturer and president of the Harpers Ferry Paper Company, the Harpers Ferry Electic Light Company, and the Shenandoah Pulp Company. He was also president and general manager of the Parsons Engineering Company. Consists of thirty-seven diaries and notebooks of Savery, dating from 1873 to 1918.

William Hollis (1868-1908) was a telegrapher working a block station of the Pennsylvania Railroad at Marietta, Pennsylvania. The pocket diary primarily documents his record of work in 1891, including assignments, discipline for mistakes, travel to headquarters, and records of many accidents - but also includes occasional references to entertainment he attended.

William P. Brobson (1786-1850) was an attorney, editor, and politician in Wilmington, Delaware. This is a copy of his diary on two reels of mirofilm. Brobson's diary contains details of his person life, but also reflects his political interests and includes his comments on current events, particularly during the John Quincy Adams (1767-1848) administration and the rise of Andrew Jackson (1767-1845).