"Preliminary 1950 Census Figures for Each County in Oklahoma: An Outline Map"1950-01-01unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_001_9_0000_3_76This is a map of the state of Oklahoma, showing preliminary census figures from 1950 for each county. The data includes population counts for each county, such as Harper with 5,880 and Woods with 14,502. The map is part of the Albert Maps collection, specifically folder 3, item 76.