Dionis Stevens was the daughter of Robert and Dionis Stevens of Brixton, England. She married Tristram Coffin about 1630 in Devonshire, England, and they were the progenitors of the Coffin family of Nantucket Island.
No record of her grave has been found, but it was probably in the Founders Cemetery.
Their children were:
Peter Tristram Elizabeth James John Deborah Mary John Steven