This small collection consists of seven portrait photographs of presidents and vice presidents of the New Castle County Mutual Insurance Company. Included are Edward T. Bellah, president, 1897-1899; Edward Bringhurst, Jr., vice president, 1900-1912; James Canby, president, 1849-1852; William Canby, president, 1857-1870 and 1885-1897; Mark M. Cleaver, president, 1900-1907; George Richardson, vice president, 1885-1888; and William Tatnall, president, 1870-1885. Several of the portraits are crayon enlargements.

Also includes a photograph of the front of the New Castle County Mutual Insurance building, "built by Mr. Calvin I. Swayne," on Market Street in Wilmington, Delaware. Also, a photograph of an article from the Wilmington Evening Journal from December 13, 1965, showing buildings in the 600 block of Market Street, Wilmington, Delaware, including the New Castle County Mutual Insurance building.