1. 1930 census map of Oklahoma / George F. Cram Company, engravers and publishers. Creator: George F. Cram Company Published / Created: [1930] Call Number: 827 1930 Container / Volume: BRBL_00577 Image Count: 2 Resource Type: Maps, Atlases & Globes Alternative Title: United States. Description: and topographical map of United States Subject (Topic): Airways--United States--Maps Found in: Beinecke Rare Book and Manuscript Library > 1930 census map of Oklahoma / George F. Cram Company, engravers and publishers.