Hi Dippy, I was able to find some information on Catryntie Roosa at http://wc.rootsweb.com/cgi-bin/igm.cgi. The only thing about Peter Markison is that he was her husband. I found 4 baptisms for them in the Old Dutch Church Baptisms. I did not find Martinus Markison, b.4 Mar 1794 and baptized on 19 May 1794. The children I found were: Caty bp. 1 Mar 1786 Benjamin bp. 15 May 1789 Rachel bp. 27 May 1791 Maria bp. 31 May 1797, baptized in Woodstock Try searching all of the names and spellings on the WorldConnect website that I have given you or do a lookup at www.familysearch.org. Richard