"Michigan Marriages, 1822-1995," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:FCNR-X3G : 4 December 2014), Martin Hoff and Ottilla Weis, 10 Sep 1932; citing reference # 6896; FHL microfilm 2,020,881.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K42Q-735 : accessed 30 November 2016), Mortin Hauff, Alpena, Alpena City, Alpena, Michigan, United States; citing enumeration district (ED) 4-7, sheet 15A, line 20, family 289, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 1722.
"Michigan Deaths and Burials, 1800-1995," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:FH15-CDC : 9 December 2014), Martin Hauff, 26 Oct 1974; citing City Of Alpena, Alpena, Michigan, reference ; FHL microfilm 2,020,875.
Have you taken a DNA test? If so, login to add it. If not, see our friends at Ancestry DNA.