A. Blömer, Ahnenliste der Anna Maria Gieraths (* 1819 in Kelzenberg), Mönchengladbach 1998, S. 33
A. Blömer, Eine aus Borschemich stammende Familie Coengens oder Coentges, Mönchengladbach 2006, S. 17
______________________ | ________________________|______________________ | ______________________| ______________________ | | | | |________________________|______________________ | Martin STEFFENS | ______________________ | (1705-....)x1738 | | | | ________________________|______________________ | | | | |______________________| ______________________ | | | | |________________________|______________________ |--Reinhard STEFFENS | (1739-....) Jakob COENTGES > | | (1605-1664)x1633 | Peter COENTGES | Anna SYLVIUS > | | (1650-1709)x1672 (1612-1673) | Hermann COENEN | | | (1675-1744)x1702 | Jakob SCHNITZLER | | | | x1650 | | | Henrica SCHNITZLER | Mechthild OFFERMANN | | (1650-1723)x1672 | Gertrud COENEN | ______________________ (1707-....)x1738 | | | Johannes HILDERATH |______________________ | | (1645-1677)x1670 | Elisabeth HILDERATH | (1675-1745)x1702 | Johann FRIEDRICHS > | | (1618-1685)x1643 | Margaretha FRIEDRICHS | Katharina DYCKS > (1647-1702)x1670 (1620-1673)