By the time of the 1870 census, 19-year-old Herman was working as a laborer on the farm of Henry Steffen in New Wine Township in Dubuque County. On 16 July 1872, he married Sophia Grote in Petersburg, Delaware County. Herman was a farmer in Wheatland Township, Carroll County, and he and Sophia had the following children: Mary Anna born 1873; Anna born 1874; Henry born 1876; Clemens Anton born 1880; Frank Herman born 1882; and Clara Sophia born 1891.
By 1910 Herman was no longer farming, but owned a home in Wheatland Township. He died in Breda at the age of 73 on 15 August 1923. He is buried at St. Bernard Cemetery in Breda.