Sorry, I forgot to look under the "Wulfen" spelling.
I do show Levi Aron or Aaron Wulfen baptised May 16, 1814 at the Dutch Reformed Church, Ulster Co., NY. He was the son of Cornelius Wulfen baptised April 19, 1788 at the Dutch Reformed Church, Katsbaan, Ulster Co., NY and Rebecca Newkirk.He had a brother John James Wulfen baptised March 20,1808 at the Dutch Reformed Church, Woodstock, Ulster Co., NY.I have 3 or 4 generations back from Cornelius if you are interested.
I do have several William's (Willam, Willem, Wiljem, etc.) I don't have a middle name for most of them though, so would need a little more info like a date or something.