| SURNAME | STATE | RESEARCHER | ||
| LACEY | VA | A. Reilly | ||
| LADD | VA | A. Reilly | ||
| LADD | OH | A. Reilly | ||
| LAMBETH | NC | N. McClellan | ||
| LANDRUM | NC | B. Rogers | ||
| LANDRUM | SC | B. Rogers | ||
| LANDRUM | AL | B. Rogers | ||
| LANDRUM | TX | B. Rogers | ||
| LASSWELL | CA | D. Marvin | ||
| LATHROP | MA | D. Perkins | ||
| LATHROP | CT | D. Perkins | ||
| LATHROP | England | D. Perkins | ||
| LATTIMORE | NY | A. Reilly | ||
| LATTIMORE | PA | A. Reilly | ||
| LATTIMORE | IA | A. Reilly | ||
| LAUFFER | PA | A. Rowe | ||
| LAWRENCE | MA | D. Young | ||
| LAWSON | VA | J. Lawson | ||
| LAWYER | Germany | A. Reilly | ||
| LAWYER | PA | A. Reilly | ||
| LAWYER | VA | A. Reilly | ||
| LAWYER | OH | A. Reilly | ||
| LAWYER | IN | A. Reilly | ||
| LAWYER | KS | A. Reilly | ||
| LeBARON/LeBARRON | MA | C. Scott | ||
| LEE | VA | J. Simonson | ||
| LEE | OH | J. Simonson | ||
| LEE | VA | P. Stowe | ||
| LEE | KY | P. Stowe | ||
| LEE | NC | B. Rogers | ||
| LEE | GA | B. Rogers | ||
| LEE | TX | B. Rogers | ||
| LEECH | CO | D. Witt | ||
| LEECH | VA | D. Witt | ||
| LEIGH | TN | B. Merrill-Bailey | ||
| LEIX | Germany | J. Cupp | ||
| LEIX | PA | J. Cupp | ||
| LENZ | Austria… | J. Bohnert | ||
| LESTER | KY | N. McClellan | ||
| LESTER | IA | N. McClellan | ||
| LESTER | CA | N. McClellan | ||
| LEVY | PA | K. Sherron | ||
| LEVY | IL | K. Sherron | ||
| LEWIS | CT | P. Stowe | ||
| LEWIS | OH | P. Stowe | ||
| LINDLEY | Ireland | A. Reilly | ||
| LINDLEY | England | A. Reilly | ||
| LINDLEY | PA | A. Reilly | ||
| LINES | SC | D. Witt | ||
| LINHART | IA | L. Parrish | ||
| LINNELL | MA | C. Stowe | ||
| LOBDELL | England | C. Stowe | ||
| LOBDELL | MA | C. Stowe | ||
| LOCKRIDGE | VA | V. Williams | ||
| LOCKRIDGE | IN | V. Williams | ||
| LOCKWOOD | CT | A. Brunckhorst | ||
| LOFTON | NC | N. McClellan | ||
| LOFTON / LOFTIN | TX | J. Vaughn | ||
| LOMBARD / LUMBARD | MA | C. Stowe | ||
| LONG | IA | L. Parrish | ||
| LOONEY | SC | B. Rogers | ||
| LORD | England | N. McClellan | ||
| LORD | PA | N. McClellan | ||
| LORD | CA | N. McClellan | ||
| LORENZ | Germany | J. Simonson | ||
| LORENZ | MN | J. Simonson | ||
| LOUDENSLOGER | Germany | P. Stowe | ||
| LOUDENSLOGER | MD | P. Stowe | ||
| LOUDENSLOGER | VA | P. Stowe | ||
| LOUDENSLOGER | W. VA | P. Stowe | ||
| LOVE | PA | R. Jauch | ||
| LOVE | B. Rogers | |||
| LOVELAND | CT | A. Frandsen | ||
| LOWERY | VA | P. Stowe | ||
| LOWERY | IA | P. Stowe | ||
| LOWRY | VA | M. Lawson | ||
| LUCAS/LUYKAS | VA | A. Reilly | ||
| LUDWICK | PA | J. Cupp | ||
| LUTTRELL | Ireland | J. Vaughn | ||
| LUTTRELL | VA | J. Vaughn | ||
| LUTTRELL | IL | J. Vaughn | ||
| LYON | VA | D. Frandsen | ||
| LYON | NC | D. Frandsen | ||
| LYON | KY | D. Frandsen | ||
| LYON | NY | B. Merrill-Bailey | ||
| LYON | Canada | B. Merrill-Bailey |