Quite a few years ago I looked up some information on this family for a friend.I ran across these few notes which I hope will help someone.My friend had lived in Tarrytown area and I believe these notes pertain to that same area:
Rosette/Roselle - dtr. of John Dutcher & Gemima VanWert, b. 12 Nov 1796, baptized 1 Jan 1798.
William Dutcher and Ann VanWert married 11 Jan 1801.(my notes are poor - says one of them died in 1820, age 38.