| Family Name | Source of Relationship |
|---|---|
| Lafferty | My Aunt Betty Lou's maiden name |
| Larkin | Several Larkin families related to me through DNA connections. |
| Lauer | Related through my Dennis Murphy Family |
| Lee | Related to me through various Lee and Campbell family DNA matches. |
| Leutner | Related through my Dennis Murphy Family |
| Lock/Locke | Related through son of Margaret (nee Lock/Locke) McKenna marrying a Henry & Mary (nee Byrne) McCabe granddaughter. |
| Lynch | There are several Lynch families related to me, some thru marriage, some thru DNA testing. |
| Lyons | Related through Eugene Kernan, son of my great aunt and uncle Marie (nee Garvey) and John Kernan |
| Lysaght | Related by marriage through my great aunt Bridget (nee McCabe) Tierney |