FamilySearch (https://familysearch.org/ark:/61903/1:1:78J2-L5ZM : 8 September 2019), George Weertman, Michigan, United States;citing Military Service, Michigan, United States, Michigan Department of State, Lansing; FHL microfilm 008461558. - George Weertman, "Michigan, Census of World War I Veterans with Card Index, 1917-1919" » Bronnen » Stamboom Altena » Genealogie Online"> FamilySearch (https://familysearch.org/ark:/61903/1:1:78J2-L5ZM : 8 September 2019), George Weertman, Michigan, United States;citing Military Service, Michigan, United States, Michigan Department of State, Lansing; FHL microfilm 008461558. - George Weertman, "Michigan, Census of World War I Veterans with Card Index, 1917-1919" » Bronnen » Stamboom Altena » Genealogie Online">
"Michigan, Census of World War I Veterans with Card Index, 1917-1919," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:78J2-L5ZM : 8 September 2019), George Weertman, Michigan, United States;citing Military Service, Michigan, United States, Michigan Department of State, Lansing; FHL microfilm 008461558. - George Weertman, "Michigan, Census of World War I Veterans with Card Index, 1917-1919"