A. Blömer, Ahnenliste der Irmgard Krapohl verh. Frau Coenen aus Jüchen, Mönchengladbach 1997, S. 83
__ | ___________________|__ | Heinrich WEYERS | __ | (1655-....)x1680 | | | |___________________|__ | Albert WEYERS | __ | (1682-1760)x1709 | | | | ___________________|__ | | | | | Lehn MICHELS | __ | x1680 | | | |___________________|__ |--Heinrich WEYERS | (1710-1775)x1734 __ | | | Ott von MÜLFORT |__ | | (1625-....)x1650 | Werner OTTEN | __ | | (1654-....)x1682 | | | | | Sibylla |__ | | x1650 | Katharina OTTEN | __ (1688-1757)x1709 | | | ___________________|__ | | | Beatrix BERKES | __ (....-1698)x1682 | | |___________________|__