| Value | Category |
|---|---|
| 0 | No father link |
| 1 | Unambiguous father link |
| 2 | Son/granchild link |
| 3 | Preceding male (no intervening person) |
| 4 | Preceding male (surname similarity) |
| 7 | Husband of mother becomes stepfather |
| Name | Vocabulary |
|---|---|
| Constructed Family Interrelationship Variables -- PERSON | IPUMS |