Tip: To quickly navigate to a surname board, enter the surname in the "Find a Board" search above.
| Board | Threads | Messages | Last Post |
| DiFelicia | 1 | 1 | 6 Jun 2003 |
| DiFeo | 1 | 1 | 14 Oct 2003 |
| Diffee | 25 | 97 | 16 Feb 2014 |
| Diffen | 7 | 44 | 29 May 2015 |
| Diffenbach | 1 | 1 | 20 Oct 2010 |
| Diffenbaugh | 13 | 21 | 26 Nov 2011 |
| Diffendahl | 1 | 1 | 18 Jul 2005 |
| Diffendal | 2 | 2 | 1 Mar 2006 |
| Diffendarfer | 0 | 0 | |
| Diffenderfer | 50 | 187 | 17 Feb 2015 |