| famname | Location | URL | Name |
| La Voye | Canada | www.geocities.com/Heartland/Prairie/2089/ | Andy Barnett |
| Lacer | USA | www.sisna.com/jaway/ | Judy Way |
| LaLoge | France | | Dolores LaLoge Beadle |
| Landon | USA,MD, SOMERSET COUNTY | www.epix.net/~wkennedy | Bill Kennedy |
| Lang | USA | www.angelfire.com/ny/LesleysWorld/index.html | Lesley Prey |
| Lang | Germany: Hannover | worldconnect.genealogy.rootsweb.com/cgi-bin/igm.cgi?db=fkwilson | Kay Wilson |
| Lapp | Lapland, Germany, Russia and USA | | Elaine McDowell |
| Lark | USA, Russell Co, VA | ourworld.compuserve.com/homepages/cindyhartman | Cindy Hartman |
| Lassiter | USA | www.angelfire.com/ny/LesleysWorld/index.html | Lesley Prey |
| Lathim | U. S. | www.geocitiesFHeartland/Farm/6582/ | Elizabeth Schooler Watkins |
| Lauber | Pennsylvania, USA | sbm.temple.edu/~clauber | Jack Lauber |
| Lavoie | Canada | www.geocities.com/Heartland/Prairie/2089/ | Andy Barnett |
| Layton | USA/KY>KA>TX | www.geocities.com/Athens/Parthenon/1433/ | Rosa Whitehorn Smith |
| Layton | England, Ireland, Switzerland, USA | web.interx.com/pearson | Lloyd Pearson |
| Lazzaro | Calabria,IT>USA>IN | www.familytreemaker.com/users/g/a/r/Leona--Garcia-WA/ | Leona Kollman Garcia |