Michael Gassmann was born in Erie County, New York, about 1851 as the son of immigrant farmers. By 1860 the family had moved to Dubuque County, Iowa[1][4]. Michael died in 1918 and is buried in Holy Cross Cemetery, Holy Cross, Dubuque County, Iowa, USA[3].
Notes
The birth date and picture appear in numerous trees on Ancestry.com, such as the JOCHUM Family of Dubuque County, Iowa[2], but could not be authenticated. Find-A-Grave[3] gives the birth year as 1852; consecutive US census data in 1860[4], 1870[5], 1880[6], 1900[7] and 1910[8] list his age as 9, 19, 29, 48 and 57, respectively. On the preponderance of evidence the most likely year of birth is 1851.
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