Children |
| 1. Fred P. Martens b. 1878, Germany d. 1934, Rockwell City, Calhoun, Iowa, United States (Age 56 years) |
| 2. Charles Louis Martens b. 5 Nov 1880, Germany d. 15 Jul 1978, Rockwell City, Calhoun, Iowa, United States (Age 97 years) |
| 3. George Martins b. 22 Sep 1882, Chicago, Cook, Illinois, United States |
| 4. Henry Theodore Martens b. Feb 1884, Jones, Iowa, United States d. 29 Nov 1932, Fonda, Pocahontas, Iowa, United States (Age 48 years) |
| 5. Bertha Henrietta Martens b. 11 Nov 1885, Onslow, Jones, Iowa d. 18 Feb 1923, Rockwell City, Calhoun, Iowa, United States (Age 37 years) |
| 6. William John Martens b. Jan 1888, Iowa, United States |
| 7. Albert Bernard Martens b. 7 Oct 1891, Rockwell City, Calhoun, Iowa, United States d. 3 Apr 1956, Inyo, California, United States (Age 64 years) |
| 8. Walter Theodore Martens b. 27 Mar 1894, Calhoun, Harrison County, Iowa, United States d. Aug 1964 (Age 70 years) |
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