Henry Martens JrAge: 9 months1910–1911
- Name
- Henry Martens Jr
- Given names
- Henry
- Surname
- Martens
- Name suffix
- Jr
| Birth | March 12, 1910 43 34 |
| Birth of a brother | Alan Martens April 28, 1911 (Age 13 months) |
| Death | 1911 (Age 9 months) Cause of death: Pneumonia |
| Family with parents |
| father |
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| mother |
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| elder sister |
Anna Elisa Martens Birth: November 4, 1896 30 21 — Iowa, USA Death: May 28, 1969 — Washington, USA |
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19 months elder sister |
Ulinka Martens Birth: May 23, 1898 32 22 — Iowa, USA Death: 1935 — South Dakota, USA |
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11 months elder sister |
Amanda Martens Birth: April 18, 1899 32 23 — Iowa, USA Death: July 21, 1976 — South Dakota, USA |
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3 years elder brother |
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14 months elder brother |
Walter Martens Birth: November 17, 1903 37 28 — Iowa, USA Death: 1914 — Iowa, USA |
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2 years elder sister |
Nora H. M. Martens Birth: April 16, 1906 39 30 — Remsen, Plymouth, Iowa, USA Death: July 8, 1986 — Scottsdale, Maricopa, Arizona, USA |
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21 months elder brother |
Bernard Martens Birth: 1907 40 31 — Iowa, USA Death: 1907 — Iowa, USA |
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3 years elder brother |
Arnold Martens Birth: 1909 42 33 — Iowa, USA Death: 1909 — Iowa, USA |
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1 year elder brother |
Bruno Martens Birth: 1909 42 33 — Iowa, USA Death: 1909 — Iowa, USA |
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14 months himself |
Henry Martens Jr Birth: March 12, 1910 43 34 — South Dakota, USA Death: 1911 — South Dakota, USA |
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14 months younger brother |
Alan Martens Birth: April 28, 1911 44 35 — South Dakota, USA Death: December 8, 1963 — South Dakota, USA |
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1 year younger brother |
Edmund F. Martens Birth: April 30, 1912 45 36 — South Dakota, USA Death: January 1974 — La Crosse, La Crosse, Wisconsin, USA |
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10 months younger sister |
Marie Martens Birth: February 14, 1913 46 37 — South Dakota, USA Death: September 20, 1980 — South Dakota, USA |
| sister |
Private |
| sister |
Private |