Thomas Yost Cooper was the city editor of the Hanover Evening Sun until his retirement in 1949. In 1965, he presented his extensive private library of more than 1,600 items to the Gettysburg College Library as a memorial to his parents, Moses and Kate Miller. His collection included many rare first editions of classics, many of which can be found on the First Editions page of this research guide. In 1966 he donated an extensive collection of theatre programs dating from the 1890s. This gift included Broadway playbills and programs from the Metropolitan Opera, Radio City Music Hall, and other notable concert venues, along with clippings and related biographical materials. Also included were seven boxes of Movie Picture Press Books and a series of attractive film advertisements. The leisure reading collection in the browsing room is part of Ty Cooper’s rich legacy
All books in the Cooper collection have the bookplate "Cooper Memorial This book is presented from the library of Thomas Y. Cooper in affectionate memory of his parents M. Cooper, M.D. & Kate Miller Cooper," which can be found under a book's "Description" or "Provenance" in MUSCAT Plus.