When Ola Martensson was born on 13 September 1740, in Slimminge, Malmöhus, Sweden, his father, Mårten Jeppsson Klenstrom, was 41 and his mother, Anna Maria Olsdotter Rattick, was 32. He married Anna Olsdotter on 11 June 1764, in Slimminge, Malmöhus, Sweden. They were the parents of at least 7 sons and 1 daughter. He died on 29 August 1804, in his hometown, at the age of 63, and was buried in Slimminge, Malmöhus, Sweden.
Some characteristic forenames: Scandinavian Anders, Elof, Nels, Sven.
Americanized form of Swedish Mårtensson or of its rare variant Mårtenson: patronymic from the personal name Mårten (see Martin ).
Americanized form of North German, Dutch, and Danish Martensen and Mårtensen, cognates of 1 above. Compare Mortenson .