This collection includes letters, personal papers, manuscripts, books, maps, and artifacts from E. Thomas and Margaret Fitzell Tifft Gilliard. The letters are from before, during, and after World War II between friends and family of Thomas and Margaret. The bulk of the letters include correspondence with Therese "Teddy" "Butchi" Waelchli, Thomas's aunt. The personal papers are official military documents, non-military documents, and notes. There are family photographs, photographs taken while Thomas served with the 63rd Infantry Regiment, 6th Infantry Division, in the Pacific Campaign, and photographs from the many scientific expeditions they took.