Letters, emails, and invitations relating to Gail S. Halvorsen's personal and family life while living in Utah. Dated 1943-1948, 1970-2016.

Contains biographical material, talks, school records, newspapers and other papers relating to Gail S. Halvorsen's personal and family life. Dated 1920-2016.

Contains films and photographs relating to the personal and family life of Gail S. Halvorsen, largely of family vacations. Dated 1926-2017.

Contains photographs of and from children who sent Gail S. Halvorsen correspondence. Dated 1948-2016.

Contains photographs, slides, and films relating to Gail S. Halvorsen's activities during the Berlin Airlift, his military career, his post-military retirement, and in his personal and family life. Dated 1905-2017.

Contains photographs, film reels, and slides relating to Gail S. Halvorsen's life and activities after retiring from the military. Dated 1905-2016.

Contains scrapbooks belonging to Gail S. Halvorsen from the Berlin Airlift, his military service, and his retirement activities. Also contains scrapbooks compiled on Halvorsen by his daughter Denise Williams and scrapbooks others have sent him. Dated 1948-2015.

Contains photo albums and scrapbooks relating to Gail S. Halvorsen's time growing up, in the military, at Tempelhof, in retirement, and on his mission for the Church of Jesus Christ of Latter-day Saints in Russia. Some scrapbooks are in Russian, German and English. Dated 1925-2013.

Subseries contains correspondence documenting Cooper's activities during the First World War, including training, combat, capture, and repatriation. Also includes letters from related veteran associations. Materials date from 1917 to 1973.

Subseries contains letters related to Cooper's service during the Russo-Polish War. Includes correspondence with family, as well as letter documenting his continuing involvement with associations and groups commemorating the conflict. Materials date from 1919 to 1980.