A. Blömer, Die Viersener Vorfahren der Maria Catharina Weyer (1800-1862), Mönchengladbach 1999, S. 41, 45
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_____________________ | _____________________|_____________________ | _____________________| _____________________ | | | | |_____________________|_____________________ | Peter BUSCHMANN | _____________________ | (1686-1723)x1707 | | | | _____________________|_____________________ | | | | |_____________________| _____________________ | | | | |_____________________|_____________________ |--Katharina BUSCHMANN | (1710-1778)x1733 _____________________ | | | _____________________|_____________________ | | | Michael HOLTHAUSEN | _____________________ | | (....-1708)x1671 | | | | |_____________________|_____________________ | | | Katharina HOLTHAUSEN | (1680-1739)x1707 | Wilhelm KAMPHAUSEN | | (1580-....) | Jakob KAMPHAUSEN | N. | | (1605-1663)x1632 | Eva KAMPHAUSEN | (1648-....)x1671 | Quirin GERHARDS | | (1570-1635)x1600 | Elisabeth GERHARDS | Katharina ARETZ (1610-1657)x1632 (1580-1635)