- Thomas Yarrow 1710-?
- Susan Cockerton 17??-?
- Willyam Yarrow 1600s-?
- Elizabeth 16??-1728
- unknown Cockerton
John Yarrow was one of the children of Thomas Yarrow and his wife Susan (née Cockerton) of Little Thetford, Cambridgeshire.
John had a twin sister named Elizabeth - twins appearing as his cousins Francis and John Yarrow.
John married Mary Rayner and together they had eight known children.
1st April 1744, Little Thetford, Cambridgeshire.
- Mary Rayner on 9th July 1777 at Little Thetford, Cambridgeshire.
- William Yarrow (1778-1848) married Elizabeth Wright
- John Yarrow (1781-1838)
- Daniel Yarrow (1783-1815) married Sarah Dennis
- James Yarrow (1786-1855) married Phoebe Pope (1791-1871)
- Mary Yarrow (1789-1870) married William Manning
- Thomas Yarrow (1791-1802)
- Flowers Yarrow (1793-1822)
- Francis Yarrow (1796-1858) married Anne
25th December 1812, Little Thetford, Cambridgeshire.