From what I can see through research, it appears that Sin Eaters were a part of society in England and Wales from the 17th to early 20th centuries. Did this practice immigrate to the United States, and if so, was it practiced in Colonial New York, Long Island, and New England? Theoretically in early 1700s New York, would this still be practiced?
You might be interested in this answer by /u/mikedash on the subject of sin eaters, which goes into detail on the rather scanty evidence we have of them https://www.reddit.com/r/AskHistorians/comments/6yinfj/what_were_sineaters_and_when_did_the_tradition/