| Notes |
- "Illinois, Cook County, Birth Certificates, 1871-1940," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NQY7-BKM : 18 May 2016), Herold Fredrick Gallagher, 22 Jul 1906; Chicago, Cook, Illinois, United States, reference/certificate 5303, Cook County Clerk, Cook County Courthouse, Chicago; FHL microfilm 1,288,120.
- "Texas Deaths, 1977-1986," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KS8P-RQ4 : 13 March 2018), Harold F Gallagher, 25 Jul 1978; citing Rural, Harris, Texas, United States, 62782, Bureau of Vital Statistics, Austin; .
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