Simon's son: Dwight E. Martzolff, born 29 December 1902, Shawnee, Perry, OH. No other mention.
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1910 Census: Salt Lick, Perry, Ohio

Head: Simon Martzolff M 39 Ohio
Wife: Inez H Martzolff F 37 Ohio
Daughter: Sarah Martzolff F 16 Ohio
Daughter: Vera Martzolff F 13 Ohio
Son: George Martzolff M 10 Ohio
Son: Charles Martzolff M 8 Ohio
Son: Stewart Martzolff M 5 Ohio
Daughter: Mary H Martzolff F 1 Ohio
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Simon's daughter: Veronica, born 25 September 1896, Shawnee, OH.; married John R. Hubbard, born 2 July 1897, Columbus, OH., on 3 July 1918, Franklin Co., OH. His parents were: Charles Hubband and Mary Ella Nicholson.
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1920 Census: Pike, Perry, Ohio

Head: Simon Martzolff M 48 Ohio
Wife: Iness Martzolff F 45 Ohio
Son: George Martzolff M 20 Ohio
Son: Charles Martzolff M 17 Ohio
Son: L Clement Martzolff M 14 Ohio
Daughter: Mary Martzolff F 11 Ohio
Son: Sturrel Martzolff M 8 Ohio
...................................................

Clem Martzolff married Lilabelle Bowen on 11 June 1929, Lucas, OH. Her parents were John Bowen and Lilah Black. Not death records could be found.
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Simon's son: Charles Martzolff married Nellie Arthurs on 14 February 1924, Perry, OH. Her parents were George Arthurs and Rilla Lemon. No other mention of her on census or death records.

Simon's son: Charles Martzolff married Barbara Cooper on 14 June 1947, Wood, OH. Her parents were Michael Dido and Mary Moyer.
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1930 Census: Detroit, Wayne, Michigan

Head: Charles Martzolff M 27 Ohio
Wife: Emily Martzolff F 23 Ohio
Son: Walter R Martzolff M 5 Ohio
Daughter: Maxine Martzolff F 4 Ohio
Daughter: Louise Martzolff F 0 Michigan
Boarder: Clement Martzolff M 23 Ohio
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Clem Martzolff married Jessie Wilma Compton on 16 September 1933, Detroit, Wayne, MI.