Greg was born in 1973, the son of unknown parents. The place is not known.
His wife was Kathryn Rose (Private) Jager. They were married, but the date and place have not been found. Their six known children were Mason Gregory (Private) (1992-?), Katie (Private) (1994-?), Seth (Private) (1996-?), Olivia (Private) (1998-?), Sam (Private) (2000-?) and Nadia (Private) (2005-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | 1973 |