BUTERFIELD, Jonas, s. Jacob and Febe, [born] Sept. 5, 1717.
↑ The father's probate names Aaron as the second son, and the mother says the father died leaving her with four children and big with the fifth, meaning either Jonas and Aaron are the same person, or or that Jonas died and Aaron was born but not recorded. The latter case seems more likely, because the first case would leave a four-year gap with no births, which doesn't fit the pattern established by the others years in this marriage.
