Chronicle of the Yerkes Family: With Notes on the Leech and Rutter Families, by Josiah Granville Leach, J. B. Lippincott, 1904
John Yerkes (Herman2, Anthony1), second son of Herman Yerkes by his wife Elizabeth Watts, was born in the Manor of Moreland, Montgomery (formerly Philadelphia) County, Pennsylvania, 21 February, 1714, and died there in 1790.
He was a farmer, and probably resided throughout his life in said Manor, where he owned a plantation of ninety-five acres, upon which he and his wife Alice executed a mortgage to Joseph Spangenburg, 2 September, 1774. It is, however, possible that he may have resided for a few years upon a plantation of two hundred acres in Plymouth Township, same county, which he purchased on 24 May, 1873, one hundred and thirty-seven and one-half acres of which he sold to his brother, Herman Yerkes, 18 May, 1747, the latter paying therefor £297.
He married, circa 1741, Alice McVaugh, born 5 April, 1717; daughter of John McVaugh, of the said Manor, and granddaughter of Edmond McVaugh, of Lower Dublin Township, Philadelphia County, by his wife Alice Dickinson.
Children of John and Alice (McVaugh) Yerkes; born in the Manor of Moreland:
Rachel Yerkes, born 1 February, 1742.
John Yerkes, born 6 October, 1743; died in 1803 or 1806; married Ann Coffing.
Catharine Yerkes, born 15 April, 1746.
Elizabeth Yerkes, born 1 September, 1748.
Harman Yerkes, born 22 November, 1750; died 16 June, 1821; married Margaret Scott.
Silas Yerkes, born 20 December, 1752; died in 1779; married Hannah Craft.
Sarah Yerkes born 26 May, 1755; married John Watson.
Benjamin Yerkes, born 28 April, 1758; died 11 August, 1841; married Margaret Jones.
Alice Yerkes, born 18 January, 1763; married, 10 April, 1798, Demas Worrell, and is said to have had issue, but no record of her family has been obtained
In compiling the Memorials of the Reading, Howell, Yerkes, Watts, Latham, and Elkins Families (Philadelphia, 1898), I supposed that Sarah Yerkes above was the one of that name who married, 6 March, 1747, Daniel Evans, as stated in that work (page 192). Later information shows that I was then in error.