| SURNAME | STATE | RESEARCHER | ||
| NASH | PA | A. Brunckhorst | ||
| NEAL | NC | E. Rogers | ||
| NEELEY | VA | N. McClellan | ||
| NEFF | VA | P. Stowe | ||
| NEFF | IA | P. Stowe | ||
| NEFF | ID | P. Stowe | ||
| NEFF | OK | D. Marvin | ||
| NEFF | CA | D. Marvin | ||
| NEILEN | Ireland | B. Merrill-Bailey | ||
| NELSON | VA | D. Nelson | ||
| NELSON | VA | E. Rogers | ||
| NELSON | IN | D. Nelson | ||
| NELSON | KY | E. Rogers | ||
| NELSON | KY | D. Nelson | ||
| NELSON | TX | E. Rogers | ||
| NELSON | OK | E. Rogers | ||
| NEW.NEU | England | A. Reilly | ||
| NEW.NEU | VA | A. Reilly | ||
| NEW.NEU | OH | A. Reilly | ||
| NEWCOMB | VT | B. Hagan | ||
| NEWLIN | PA | D. Holaday | ||
| NICHOLSON | GA | B. Rogers | ||
| NICHOLSON | TX | B. Rogers | ||
| NIX | SC | B. Merrill-Bailey | ||
| NOBLE | VT | J. Simonson | ||
| NORRIS | KY | J. Lawson | ||
| NORRIS | IL | J. Lawson | ||
| O'BRIEN | NM | M. O'Brien | ||
| O'BRIEN | NS | M. O'Brien | ||
| ORASZ | Hungary | L. Holaday | ||
| OSBON/OSBORN | NC | A. Reilly | ||
| OSBON/OSBORN | IA | A. Reilly | ||
| OSGOOD | England | K. Brahms | ||
| OSGOOD | MA | K. Brahms | ||
| OTTWELL | DE | E. Rogers | ||
| OTTWELL | OH | E. Rogers | ||
| OTTWELL | IL | E. Rogers | ||
| OVERHOLT / OBERHOLDZER | PA | B. Jarvis | ||
| OVERHOLT / OBERHOLDZER | OH | B. Jarvis |