A. Blömer, Ahnenliste Johann Peter Keller, * 3.4.1935 in Rheydt, Mönchengladbach 1987, S. 45
A. Blömer, Die Familie Kater vom Dackweiler-Hof, Mönchengladbach 2003, S. 33
♥ = Vorfahren __ | ♥ Wilhelm |__ | (....-1617)x1590 ♥ Bastian WILHELMS | __ | (1600-1665)x1625 | | | |♥ Lüttgen |__ | (....-1605)x1590 ♥ Wilhelm BASTIANS | __ | (1630-1698)x1659 | | | | ___________________|__ | | | | |♥ Metgen JANSEN | __ | (....-1654)x1625 | | | |___________________|__ |--♥ Katharina BASTIANS | (1670-....)x1695 __ | | | ___________________|__ | | | ♥ Johannes OHLIGSCHLÄGER | __ | | (....-1659)x1635 | | | | |___________________|__ | | |♥ Gertrud OHLIGSCHLÄGER | __ (1635-....)x1659 | | | ___________________|__ | | |♥ Margaretha BOYMANS | __ x1635 | | |___________________|__