| Non-return migrants | Parent birthplace: South (either parent) |
| Child birthplace: South/non-South | |
| Residence in 1940: Non-South | |
| Residence in 2000: Non-South | |
| Lifetime Return/Southern-born | Parent birthplace: South (either parent) |
| Child birthplace: South | |
| Residence in 1940: Non-South | |
| Residence in 2000: South | |
| Generational Return/Northern-born | Parent birthplace: South (either parent) |
| Child birthplace: Non-South | |
| Residence in 1940: Non-South | |
| Residence in 2000: South |