|  Male Robertus Johannes Gaerthe | 
| Birth | 16 Sep 1812 | Borkum, Hanover, Prussia, Germany  | 
| Death | Yes, date unknown | |
| Burial | ||
| Marriage | 6 Jul 1845 | Groningen, Groningen, Nederland  | 
| Father | ||
| Mother | ||
|  Female Maria Sophia Martina Helena van Marle | 
| Birth | 2 Mar 1814 | Groningen, Groningen, Nederland  | 
| Death | 6 Sep 1846 | Groningen, Groningen, Nederland  | 
| Burial | ||
| Other Spouse | Derk Jan Coops Busgers | F187 | |
| Marriage | 20 Oct 1837 | Burgerlijke Stand, Groningen, Groningen, Nederland  | 
| Father | Henricus van Marle | F1579 Group Sheet | |
| Mother | Charlotta Harmanna Boss | F1579 Group Sheet | |