Relationship Records
Gender: Male (2/2)
| Self Records | ||||||
| Duff, Clarence A | M | Self | 1911 | 12 | Relationships | |
| Duff, Clarence | M | Self | 1921 | |||
| Father Records | ||||||
| Duff, John A | M | Father | 1911 | 689012M | Relationships | |
| Duff, John A | M | Father | 1921 | |||
| Mother Records | ||||||
| Duff, Mary C. | F | Mother | 1911 | 012 | Relationships | |
| Duff, Mary | F | Mother | 1921 | |||
| Brother Records | ||||||
| Duff, Clinton A | M | Brother | 1911 | 012B | Relationships | |
| Duff, Clinton | M | Brother | 1921 | |||
| Sister Records | ||||||
| Duff, Lora M | F | Sister | 1911 | 01 | Relationships | |
| Duff, Grace E | F | Sister | 1911 | 01B | Relationships | |