'John Morgan ... was born probably at New London, Connecticut, about 1673, and died there 24 April 1754 [citing Diary of Joshua Hempstead, 1:628; New London VRs].'
'He was "John Morgan alias Rosemorgan" at the 1708 baptism of his fifth child. But this was his final usage of Rose -- in later records, as witness of inventory-taker, he was John Morgan [citing New London District Probate, C:503, 509, and Probate File 1731].'