"United States World War I Draft Registration Cards, 1917-1918," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K66K-WYB : 12 December 2014), Ralph Marion Osborn, 1917-1918; citing Thomas County, Kansas, United States, NARA microfilm publication M1509 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,643,921.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JB9S-NPN : 20 May 2014), Ralph Osborn, Jul 1986; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
The Church of Jesus Christ of Latter-day Saints, "Ancestral File," database, FamilySearch (https://familysearch.org/ark:/61903/2:1:MCN8-QCF : accessed 2017-07-05), entry for Ralph Marion OSBORN.
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