There are 168 unique father surnames beginning with L:

Lachemier	Lachenmaier	Lachenmier	Lackenmeyer	LaDow	Lafe	Lahner
Laird	Lake	Lamay	Lamb	Lame	Lamme	Landacre
Landas	Landen	Landes	Landis	Landon	Lane	Lanery
Langenfeld	Langstaff	Lansdown	Lanson	Lape	Larcom	Larcomb
Larinder	Larkins	Larowe	Larue	Lary	Lash	Lasure
Latimer	Lattimer	Lattimire	Lauer	Laughery	Laughlin	Laughrey
Laure	Lavander	Lavender	Lavinder	Lawless	Lawrence	Laws
Lawson	Laxcomb	Layman	Laymaster	Leach	Leahem	Leahman
Leard	Leasper	Leasure	Leder	Ledley	Lee	Leeper
Leffler	Lefler	Lehen	Lehman	Leid	Leidy	Lemaster
LeMasters	Lemay	Lembke	Lemley	Lemmon	Lemon	Lenhart
Lennox	Lenorad	Lenox	Lentz	Leonard	Leonhard	Leonhart
Leppert	Levingston	Lewellen	Lewis	Lichte	Lifford	Liggett
Lightner	Lime	Lincinmier	Lincoln	Linder	Lindsay	Lindsley
Lindsly	Lineham	Lingrel	Lingrell	Linn	Linsley	Linzinmeire
Lipford	Listen	Lister	Liston	Littell	Little	Littler
Littrell	Litzenberg	Litzenburg	Livingston	Livingstone	Lloid	Loar
Locbrick	Lock	Lockhart	Lockwood	Loder	Logan	Lon
Londen	Long	Longacre	Longberry	Longbrake	Longbury	Longshore
Loomis	Loop	Loor	Lorr	Loschkey	Loschky	Louck
Loucks	Loughey	Louis	Louks	Love	Loveland	Loveless
Low	Lowe	Lower	Lowery	Lowry	Loy	Loyd
Lucas	Luellen	Lurch	Lusch	Luschkey	Luschky	Lutrell
Lyman	Lynch	Lynn	Lyon	Lyons	Lytle	Lytzenburg

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