Willis Allen Otto
1926 - 1986 (59 years)Drag or scroll to see more of the chart.
Julius Emil Otto
1847-1933
1847-1933
Philippina Ehrhard
1845-1931
1845-1931
Ludwig Leo Otto
1874-1959
1874-1959
Pauline E. Johnson
1876-
1876-
Willis Leo Otto
1899-1971
1899-1971
Hazel Dorothy Allen
1897-1992
1897-1992
Willis Allen Otto
1926-1986
1926-1986