The source of the date seems unclear. The year 1618 for their marriage seems to crop up as early as 1912. It may simply be based on daughter Elizabeth's year of birth. The year 1618 seems to be conjecture by James P. C. Southall in his 1947 article Concerning George Yardley and Temperance Flowerdew: A Synopsis and Review. According to the same source, Yeardley «went to England in the latter half of the year 1617 and was absent from Virginia during whole of the following year 1618.»
