Mary Cooke was not married to the John Rickard born in 1652, son of Giles2, but to his cousin John born in 1657, son of John. It is written that this John "probably married Mary Snow". Two of his brothers married two of her sisters. I descend from Israel Dunham and Joanna Rickard also. I hope this helps you. Helen 1-- Francis Cooke (1580-1661) Hester Mahieu (____-____) 2-- Jacob Cook (____-1675) Damaris Hopkins (____-1665/9) 3-- Mary Cooke (1657/8-1712) John Rickard (1652-1726) 4-- Joanna Rickard (1691-1767) Israel Dunham (1689/90-1726) 5-- Cornelius Dunham (1716-1766) Patience Barrow (1724-1807) 6-- James Dunham (1758-1829) Elizabeth Robbins (1758-1820) 7-- George Dunham (____-1876) Bethiah Friend (1783-1843) 8-- Rosanna Dunham (1818-1878) William Stinson Glidden (1814-1883) 9-- Phebe Elizabeth Glidden (1840-1927) Randall Nelson Cochran (1836-1905) 10--Evelyn Lissie Cochran (1868-1917) Dummer Michael Sylvester (1865-1958) 11--Vivian Daniel Sylvester (1893-1968) Evangeline Estelle Washburn (1895-1981) 12--Living Sylvester (1917-) Living Merry (1924-) 13--David Wayne Sylvester (1951-) Living (1955-) 14--Living Sylvester (1991-)