Familie Kramer Stamboom Website
People: Lieuwe Gerben Kramer, Private, Leo Kramer and 1309 others.
FamilySearch Stamboom
People: Lieuwe Klazes Kramer, Janna Lieuwes Kramer, Klaas Lieuwes Kramer and 1698 others.
Nederlandse begrafenisrecords
People: Janna Lieuwes Kramer, Klaas Jippes Hoekstra, Sijbren Hoekstra and 113 others.
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People: Lieuwe Gerben Kramer, Ate Karsten Kleisma Karsten, Jantje Sikkes van der Woude and 386 others.
rijkaard Web Site
People: Jan van de Kamp, Gerdina Gabrijel, Gerardus Krechting and 36 others.