Wilhelm Friedrich Johann Koch1871–
- Name
- Wilhelm Friedrich Johann Koch
- Surname
- Koch
- Given names
- Wilhelm Friedrich Johann
| Birth | September 9, 1871 26 22 |
| Birth of a brother | Emil Ernst Carl Theodor Koch November 16, 1872 (Age 14 months) |
| Birth of a brother | Bernhard Koch January 22, 1877 (Age 5 years) |
| Birth of a brother | Alwin Otto Koch August 18, 1880 (Age 8 years) |
| Birth of a sister | Anna Marie Koch July 29, 1882 (Age 10 years) |
| Birth of a sister | Ida Selma Bertha Koch August 14, 1884 (Age 12 years) |
| Birth of a sister | Anna Selma Koch July 29, 1888 (Age 16 years) |
| Family with parents |
| father |
Carl Friedrich August Koch Birth: about 1845 |
| mother |
Caroline Marie Henriette Kühne Birth: September 27, 1848 32 — Bösenrode |
| elder brother |
Hermann Heinrich Wilhelm Koch Birth: June 1, 1867 22 18 |
|
23 months elder brother |
Carl Bernhard Koch Birth: April 28, 1869 24 20 |
|
2 years himself |
Wilhelm Friedrich Johann Koch Birth: September 9, 1871 26 22 |
|
14 months younger brother |
Emil Ernst Carl Theodor Koch Birth: November 16, 1872 27 24 |
|
4 years younger brother |
Bernhard Koch Birth: January 22, 1877 32 28 |
|
4 years younger brother |
Alwin Otto Koch Birth: August 18, 1880 35 31 |
|
23 months younger sister |
Anna Marie Koch Birth: July 29, 1882 37 33 |
|
2 years younger sister |
Ida Selma Bertha Koch Birth: August 14, 1884 39 35 |
|
4 years younger sister |
Anna Selma Koch Birth: July 29, 1888 43 39 |