La Rosa
 Rose La Rosa Morano   (Bagheria)

Lalicata
 Dominic Lalicata   (Bagheria)
 Giovanni Lalicata, 1880-1930   (Bagheria; Milwaukee)
 Giuseppina Balistreri Lalicata, 1890-1971   (Sant' Elia; Milwaukee)
 Margharetta Balistreri Lalicata   (Bagheria)

Lartalucito
 Anna Lartalucito Mazzucco   (Santo Stefano di Camastra)

Lasinski
 Agnes Lasinski, 1873-
 Catharina Lasinski, 1871-
 Joseph Lasinski
 Mariana Lasinski, 1866-
 Petronella Komassa Lasinski, 1842-   (Czeschewo)
 Sophia Lasinski, 1880-

Laskowski
 Anna Kolodziezski Laskowski, 1833-   (Milwaukee)
 Frances Laskowski Komassa, 1873-1932   (Milwaukee)
 Michael Laskowski, -1885   (Milwaukee)
 Nikodem "Nicholas, Nikodemus, Nic," Laskowski, ca 1870-   (Milwaukee)

Laudate
 Filosofia Elvira Laudate Bellanti, 1907-1987   (New York City; Buffalo)

Lechner
 Anna Catherine "Annie" Metz Smith Lechner, 1919-2018   (Rubicon; Hartford)
 Glen Joseph Lechner, 1923-1998   (Hartford)

Ledel
 Elisabeth Stoppel Ledel, 1666-   (Groß Herrlitz)
 Friedrich Ledel   (Frey Hermersdorf)

Lemiesz
 Alice Lorraine Lemiesz Serdynski, 1918-1995   (Milwaukee)

Lenten
 Jessie Lenten Bawden   (Humboldt)

Lieding
 Elisabeth Patz Lieding, 1826-   (Etterwinden; Taubenellenmühle)
 Johannes Lieding

Liefeldt
 Albertine Maria "Bertha" Schenk Liefeldt, 1882-1957   (Jägerndorf; Sheboygan; Milwaukee; Dyersville)
 Ermgard Amanda "Ermgarth" Liefeldt Neusen, 1914-1983   (Milwaukee; Dyersville; Pewaukee)
 Lillian E Liefeldt Pape Premysl, 1911-1970   (Milwaukee; Dyersville)
 Otto Liefeldt, 1882-1939   (Milwaukee; Dyersville)

Lipps
 Annie Mary Lipps Beiersdorf, 1895-1981   (Sheboygan County; Sheboygan)
 Christian Lipps, 1854-1912   (Saxony; Sheboygan; Sheboygan County)
 Christian Lipps, 1823-1905   (Sheboygan; Saxony)
 Johanna Dietrich Lipps, 1820-1892   (Fresenburg Weringerode; Sheboygan; Saxony)
 Marie Franziska Schenk Kolbe Lipps, 1855-1948   (Jägerndorf; Sheboygan; Eckersdorf; Plymouth; Sheboygan County)

Lockbaum
 Anna Lockbaum, 1874-   (Berlin; Milwaukee)
 Christinna Augusta Theresa "Trace" Rudloff Lynch Engelgau Lockbaum, 1880-1962   (Wenigenlupnitz; Sheboygan; Milwaukee; Peoria; Menasha; Wauwatosa)
 George J H Lockbaum, 1872-1939   (Saint Martins; Menasha; Chicago; Milwaukee)
 George Joseph Lockbaum, 1899-1974   (Chicago; Ladysmith; Joliet; Norwood; Chippewa Falls)
 Leona Lockbaum, 1901-   (Milwaukee)
 Mary Hoff Lockbaum, 1874-1911   (Chicago)
 Michael Lockbaum, ca 1835-   (Bavaria; Menasha; Saint Martins)
 Rosina Mayer Lockbaum, ca 1837-   (Baden; Menasha; Saint Martins)
 Willard Lockbaum, 1909-1994   (Milwaukee; Menasha; Sun City; Maricopa County)

Lohe
 Johann Lohe, ca 1780-   (Lungburg)
 Maria Josepha "Josepha" Stoppel Lohe, 1789-   (Seitendorf)

Lohnert
 Andres Lohnert   (Erbersdorf)
 Magdalena Lohnert Stoppel   (Groß Herrlitz; Dersten Hof)

Loquai
 Anna C Hardy Loquai, 1870-1950   (Trenton; Milwaukee)
 Apolonia Therasia Rose "Lona, Alona" Loquai Kroeger, 1892-1939   (Milwaukee; Madison)
 Carl Joseph Heinerich "Charles" Loquai, 1904-1973   (Milwaukee; Wauwatosa)
 Charles Joseph Loquai, 1864-1912   (Milwaukee)
 Elenora Clara "Lenora" Loquai Terrell, 1901-1969   (Milwaukee; Chicago)
 Frances M Metz Loquai, 1906-1986   (Milwaukee)
 Jeanne Tina "Jean" Loquai, 1894-1974   (Milwaukee; Chicago)
 John Loquai, 1912-1912
 Joseph Michael Loquai, 1909-1973   (Milwaukee)
 Mary Lucille "Lucille" Rosara Loquai, 1911-2012   (Milwaukee)
 Oscar Frank Joseph Loquai, 1896-1953   (Milwaukee)
 Rose Dorothea "Rosie, Rosa" Loquai Brauer, 1891-1920   (Milwaukee)

Lott / Loth
 Anna Margaretha Lott Patz   (Etterwinden)
 Elisabeth Dorothea Johanna Maria Schroder Loth   (Eckardtshausen; Etterwinden)
 Eva Margretha Henrietta "Henrietta" Loth Patz, 1832-1911   (Etterwinden; Central City; Lake City; Hinsdale County; Hinsdale; Twin Falls)
 Johann Georg Loth   (Etterwinden)

Luczkowski
 Catherine Luczkowski Bystry   (Milwaukee)

Lynch
 Christinna Augusta Theresa "Trace" Rudloff Lynch Engelgau Lockbaum, 1880-1962   (Wenigenlupnitz; Sheboygan; Milwaukee; Peoria; Menasha; Wauwatosa)
 Pat Lynch, 1875-   (Sheboygan)