1872 - 1939 (67 years)(Notes: You may have to scroll down or right to see chart.)
| Julius E. Koch 1903-1976 |
| Julius E. Koch | |
| B: | May 1903 |
| Conestogo, Ontario, Ca. | |
| D: | 26 Nov 1976 |
| Kitchener, Ontario, Ca. | |
Margaret R. Koch Dahmer 1904-1998 |
| Margaret R. Koch Dahmer | |
| B: | 11 Nov 1904 |
| Conestogo, Ontario, Ca. | |
| D: | 10 Oct 1998 |
| Kitchener, Ontario, Ca. | |
| Edward Henry Koch 1907-1980 |
| Edward Henry Koch | |
| B: | Sep 1907 |
| Conestogo, Ontario, Ca. | |
| D: | 16 Nov 1980 |
| Elmira, Ontario, Ca. | |
|
| Otto Koch 1872-1939 |
| Otto Koch | |
| B: | 6 Apr 1872 |
| Conestogo, Ontario, Ca. | |
| D: | 13 Sep 1939 |
| Kitchener, Ontario, Ca. | |
| Rosetta Simpson Koch 1876-1923 |
| Rosetta Simpson Koch | |
| B: | 5 Jul 1876 |
| Philipsburg, Ontario, Ca. | |
| D: | 29 Jan 1923 |
| Conestogo, Ontario, Ca. | |
