A. Blömer, Die reformierte Familie Gietmann (Gethmann) aus Monheim und Hilden, Mönchengladbach 1996, S. 24
__ | ________________________|__ | Johannes HALFMANN | __ | (....-1707)x1666 | | | |________________________|__ | Diedrich HALFMANN | __ | (1680-1718)x1707 | | | | Diedrich CLEVENHAUS |__ | | | (....-1679)x1645 | | Elisabeth CLEVENHAUS | __ | (1645-1707)x1666 | | | | Katharina im SCHWANEN |__ | (1620-1678)x1645 |--Anna Christina HALFMANN | (1710-1758)x1737 __ | | | Gotthard TILLMANS |__ | | | Peter TILLMANS | __ | | x1686 | | | | | N. |__ | | | Anna Maria TILLMANS | __ (1687-1712)x1707 | | | Heinrich KIRBERG |__ | | (1620-1682)x1645 | Katharina KIRBERG | __ (1655-1713)x1686 | | | Anna Maria TIETENBERG |__ (....-1682)x1645