I did that reading, DP, but it appears that the author of this thread wants it all handed to him on a platter. I think i did quite well by him in pointing out to him which were the earliest "Christian" settlements in what is now the United States. He can do some of this himself, you know.
If he just wants the earliest Christian settlement, in which Easter might have been "celebrated," that is probably Penasacola, maybe Fort Caroline, but it would definitely have been celebrated in St. Augustine. As someone familiar with how history gets written, though, i have pointed out that very likely, he will never get documentary evidence for this.
If he is concerned only about the English-speaking colonies, than his most likely candidates would be the Jamestown colony in Virginia. (All of the English-speaking colonies on the North American mainland were originally part of Virginia, at least technically, because the enterprise was named in honor of Elizabeth. But the old bitch was dead by the time Jamestown was established--named, unsurprisingly, for her successor, James VI and I. Massachusetts was actually a corporate enterprise--the Massachusetts Bay Company
--but then, so was all of Virginia.)
If, however, no Anglican ministers set up shop in Jamestown before the Maryland colony was founded in 1632, that would be the most likely candidate. In either case, the same thing applies there as does in Florida--there is very likely no documentary evidence of when the first Easter celebration was observed. Just how much detail he wants to go into is, of course, up to him. In that case, it is not unreasonable to suggest that he might do the leg work himself.
I frankly can't think he did all that much work if it has never occurred to him that the answer is likely in St. Augustine sometime after 1566, given that that is the oldest continuously settled town (by Christians) in what is now the United States. However, not assuming anything about how much he knew (or how little real effort he made), i provided him with the information he would need to make his best guess. From this point forward, all he needs is information from the liturgical calendar for the relevant year--whichever one he chooses.