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John is 15 degrees from Harry Ferguson, 15 degrees from Arthur Guinness, 26 degrees from Seamus Heaney, 22 degrees from Jack Kyle, 22 degrees from Stephen Boyd, 28 degrees from Robert Moore, 20 degrees from Ruby Lamar, 18 degrees from Fanny Parnell, 18 degrees from William Pirrie, 16 degrees from Jonathan Swift, 19 degrees from John Synge and 17 degrees from Celia Marsh on our single family tree. Login to find your connection.
The new article by Stewart Baldwin uses 1671, saying "The birth of his first wife in 1668 would seem to suggest an earlier date, while his survival until 1757 would seem to suggest a later date. The estimate given here is probably not off by more than a few years." On the other hand, an argument may be made for the most common date on Ancestry trees (which I don't know) because that would make it less likely for duplicate profiles to be created in the future.