Samuel Kleerekoper was a son of Gerrit Jacob Kleerekoper and Catharina Agsteribbe. He was previously married to Elizabeth Mozes Reens. She passed away in 1925. They had seven children, among whom Gerrit, Sara, Evalina (who passed away in 1933) and the here mentioned Reina and Catharina. He married Rachel de Boer in 1926 in Amsterdam.
Stadsarchief Amsterdam, archiefkaart Samuel Kleerekoper