| SURNAME | STATE | RESEARCHER | ||
| QUIGLEY | IL | J. Simonson | ||
| RADFORD | VA | C. Stowe | ||
| RADFORD | KY | C. Stowe | ||
| RAGLAND | VA | A. Reilly | ||
| RANDOLPH | VA | M. Lawson | ||
| RAU/ROW/ROWE | PA | A. Rowe | ||
| RAY / RHEA | OK | D. Marvin | ||
| RAY / RHEA | CA | D. Marvin | ||
| REDMAN | VA | E. Rogers | ||
| REDMAN | KY | E. Rogers | ||
| REEDER | PA | A. Frandsen | ||
| REES | Wales | K. Brahms | ||
| REES | IA | K. Brahms | ||
| REES | UT | K. Brahms | ||
| REGISTER/REGESTER | DE | A. Reilly | ||
| REGISTER/REGESTER | PA | A. Reilly | ||
| REID | PA | A. Brunckhorst | ||
| REID | OH | A. Brunckhorst | ||
| REILLY/RILEY/RILY | Ireland | A. Reilly | ||
| REILLY/RILEY/RILY | NY | A. Reilly | ||
| REILLY/RILEY/RILY | NJ | A. Reilly | ||
| REILLY/RILEY/RILY | IL | A. Reilly | ||
| REILLY/RILEY/RILY | IN | A. Reilly | ||
| RHOADS / RHODES | KY | D. Marvin | ||
| RHOADS / RHODES | CA | D. Marvin | ||
| RHOADS / RHODES | Germany | D. Marvin | ||
| RHOADS / RHODES | France | D. Marvin | ||
| RICARDSON | MA | D. Young | ||
| RICE | SC | B. Rogers | ||
| RICE | MO | D. Marvin | ||
| RICE | CA | D. Marvin | ||
| RICHARDSON | VA | C. Stowe | ||
| RICHARDSON | KY | C. Stowe | ||
| RIGGEN | DE | E. Rogers | ||
| RIGGEN / | MD | D. Young | ||
| ROBERTS | Wales | K. Brahms | ||
| ROBERTS | NC | G. Gibbel | ||
| ROBERTS | KY | G. Gibbel | ||
| ROBERTS | MO | G. Gibbel | ||
| ROCKHOLD | IL | M. O'Brien | ||
| ROCLWELL | CO | M. O'Brien | ||
| ROGERS | Ireland | P. Stowe | ||
| ROGERS | TX | B. Rogers | ||
| ROGERS | MD | B. Rogers | ||
| ROGERS | NC | B. Rogers | ||
| ROGERS | TN | B. Rogers | ||
| ROGERS | VA | B. Rogers | ||
| ROGERS | MA | C. Stowe | ||
| ROLLINS | NH | K. Sherron | ||
| ROLLINS / RAWLINGS / RAWLING | NH | K. Sherron | ||
| ROWDEN | England | N. McClellan | ||
| ROWDEN | Canada | N. McClellan | ||
| ROWDEN | MI | N. McClellan | ||
| RUSSELL | Ireland | B. Rogers | ||
| RUSSELL | NC | B. Rogers | ||
| RUSSELL | CT | G. Gibbel | ||
| RUSSELL | VT | G. Gibbel | ||
| RUSSELL | NY | G. Gibbel | ||
| RYAN | Ireland | D. Young | ||
| RYAN | OH | D. Young | ||
| RYAN | Ireland | R. Carpenter | ||
| RYAN | MA | R. Carpenter |