Martensen Genealogy to 1732
Johann-Friedrich (John) Martensen
(1921-1950)
Paul Ferdinand Martensen
(1892-1968[?])
Johann-Friedrich Martensen
(1862-1918)
Peter Heinrich Martensen
(1833-1917)
Jens Martensen
(1800-1861)
Peter Martensen
(1765-1839)
Marten Jensen
(1732-1789)
Notes and References