Analysis of information sources in references of the Wikipedia article "John Washington" in Simple English language version.
Although estimates of his birth date by modern researchers range from 1631 to 1634, Peter Walne has convincingly argued that John's parents were not married until November 30, 1633 or very soon thereafter. As Walne points out this was the date John's father Lawrence formally resigned his fellowship at Oxford and he had formerly taken an oath to remain unmarried as long as he held the fellowship.
