Home Owners' Loan Corporation. Redline Map for Birmingham, Alabama, Records of the Federal Home Loan Bank Board : Home Owners Loan Corporation, Record Group 195. United States. National Archives and Records Administration. https://fraser.stlouisfed.org/archival/6751/item/619184, accessed on December 5, 2023.
National Archives and Records Administration
http://rightsstatements.org/vocab/NoC-US/1.0/