I'm studying profiles of ancestors of Isaac Slocum (link below). Isaac is one of my ancestors. I see a large number of ancestor threads came from England to Rhode Island Colony as part of the Pilgrim Great Migration and some were prominent in various levels of Rhode Island government. I see that many had large families and the various threads appear to have intermarried a lot. Are there sources for how many people lived in the Rhode Island Colony in, say, 1640 or 1670? This is more out of curiosity rather than a direct genealogy puzzle.