I currently work at Schuyler Mansion in Albany and we are wondering anew about precisiely what happened. I believe Gerlach pieced together the (letter) exchange between Schuyler and Varick about it, and it seems that J.B. Schuyler had some sort of indescretion - Mary Carpenter, as the one person who could testify against him, was seemingly hidden and then immediately sent up to Canada with a Schuyler flunky. She was to receive this annuity until she married or became of age. Since she received money for approximately 4 - 5 years, she must have been fairly young. As I mentioned, I wondered whether she left on paper or in family tradition, her side of the story, since the Schuyler papers do not hold much detail. Philip Schuyler does mention in another letter that the sooner J.B. got married, the better, so I imagine it was an incident of a sexual nature.