The Oversized Materials series contains materials that are too large to fit inside normal record cartons. The appointments, certificates, and commissions grouping contains all official and decorative documents awarded to Lanham for all ranks from Corporal in Second Regiment of the Eastern High School Cadets to Major General in the United States Army. The Awards and Citations found in the papers include scrolls given by American Units and foreign honors bestowed on Lanham, including a French Knighthood and Czechoslovakian War Cross. The series also includes several photobooks and scrapbooks. The photos often have information written on the back providing date, context, and identifying people. The scrapbooks document Lanham's career from 1945 until his retirement and contain various articles, pictures, commentary, and artifacts that detail his experience. Only one incomplete ledger documents 1955-1978. The vinyl records are recordings of speeches given by Lanham or events held in his honor.

The Biographical series includes a biographical sketch, clippings, and identity books for Kent and his wife to allow them to travel through Great Britain in 1919. The series also contains materials from Kent's service on the Council of New York University, a sampling of invitations he received, programs from events where he was the speaker or was honored, and materials from organizations of which he was a member.