J. Roelen, Bockhefte 1, 1938, S. 9, 70
J. Roelen, Bockhefte 2, 1939, S. 12 f.
____________________ | ___________________|____________________ | _____________________| ____________________ | | | | |___________________|____________________ | Johann BOYMANS | ____________________ | x1719 | | | | ___________________|____________________ | | | | |_____________________| ____________________ | | | | |___________________|____________________ |--Gerhard BOYMANS | (1725-....)x1760 Adam ERBERICH | | (1590-1629)x1627 | Adam ERBERICH | Maria SCHAFSBERG > | | (1628-1682)x1653 (1592-1658) | Gerhard SCHAFSBERG | | | (1667-1708)x1688 | Heinrich SCHROIFF > | | | | (1592-1675)x1617 | | | Lucia SCHROIFF | Helena ESSER > | | (1631-1696)x1653 (1593-1673) | Katharina SCHAFSBERG | ____________________ (1694-....)x1719 | | | ___________________|____________________ | | | Elisabeth BREUER | ____________________ (1668-1730)x1688 | | |___________________|____________________