Donald Hoke (1951-) and Carolyn Hoke (1951-) are co-owners of Vintage Steam Products, LLC, which manufactures and sells restoration materials for Stanley steam vehicles in Texas. Don Hoke created the Virtual Steam Car Museum, Inc. in 2011. Sparked by eight years at the Milwaukee Public Museum curating the Dietz Collection, he started collecting typewriter ephemera privately and discovered eBay in 1995. A typewriter is a mechanical or electromechanical machine for producing written characters using a key to strike an inked ribbon to transfer ink or carbon onto paper. This collection of typewriter advertising and ephemera offers great insight into the technological development of the typewriter through its beginnings in the 1870s until its eventual dissolution in the 1990s. The plethora of advertising ephemera helps frame the typewriter historically and sociologically, offering insight into the careers of typists and the migration of the typewriter from the office into the home. Trends in advertising and industrial design through the twentieth century are also represented in this collection and will offer ample evidence of these evolutions to researchers.

Richard Hunt Brown (1903-1978) was an engineer and president of Automation Consultants, Inc., a firm that provided a subscription updating service for monthly newsletters, with pages containing reviews and descriptions, prices, and images of new equipment and appliances. This collection consists of five volumes of "Office Automation: Integrated and Electronic Data Processing," published in 1955 with updated content provided as newsletters/supplements between 1955 and 1960.

Richard Hollerith, Jr. (1926-), spent his professional career working as an industrial designer of office products, computers, printers, office space, and household products. His papers include correspondence, meeting minutes, conference and working group reports, and blueprints reflecting his work as a designer and as an advocate of universal design and barrier-free environments.