[Brøderbund WFT Vol. 22, Ed. 1, Tree #2589, Date of Import: Dec 1, 1998]
Krijn Kalkman (1739-1820) = son Ary (1769-18450 = son Krijn (1795-1863) = son Krijn (1830-1904) = son Cornelius (Casey) = daugh. Jennie Adriana (1899-____).
Krijn Kalkman (1739-1820) = son Jan (1781-1845) = son Jan (1824-1866) = son Herman Jan (1859-1929) = son Pieter N. (1884-1946) = son Pieter N Kalkman (1908-____).
Krijn Kalkman (1739-1820) married twice. 1. Jacoba Van De Berg 2. Cornelia De Jong. U.S. Kalkmans (Holland, Michigan) decended from Cornelia.