Thomas Clark married first, before July 1631, Susannah Ring, born in England, or perhaps in Leyden, Holland, probably between 1605 and 1612, daughter of William and Mary (Durrant) Ring.
The Ring family was in Leyden by 1614. In that year Mary Ring was a witness to the marriage of Samuel Terrier and Mildred Charles; another witness was Samuel Fuller, a passenger on the Mayflower in 1620.
William Ring died in Leyden before 1629, and his widow arrived in Plymouth, probably in that year, with several children. She may have come on the Mayflower (the second Pilgrim ship of that name) that arrived in Salem 15 May 1629 (Amer.Gen. 42:195, 196). The Widow Mary Ring died in Plymouth on 15 (or 19) July 1631.
In her will, published in full in The Mayflower Descendant (MD) 1:29-34, she mentioned her daughter Susan Clark to whom she bequeathed several items. As Thomas Clark and Susannah were married by July 1631, and as their eldest surviving son William was born in 1634, there may have been a still older child, born about 1632, who died in childhood.
Susannah died sometime between 1645-46, after her last child was born, and 20 Jan 1664/5, the date when her husband entered into a pre-nuptual agreement with Mrs. Alice (Hallett) Nichols, daughter of Richard Hallett and widow of Mordecai Nichols of Boston.