Libraries & Archives
Choctaw County Public Library
Bryan County Genealogy Library
The University of Oklahoma Library
Oklahoma State University Library
Henry G. Bennett Memorial Library - SOSU
Tulsa City-County Library
Aikin Archives - PJC
Oklahoma Digital Prairie
WorldCat
Library of Congress
Internet Archive
Allen County Public Library
The Genealogical Research Library
JSTOR.org
ArchiveGrid
Directory of Genealogy Libraries in the U.S.
Directory of Libraries throughout the World
PublicLibraires.com - Colleges & Universities
Other Organizations
Association of Professional Genealogists
National Trust for Historic Preservation