Some sources list his death in September 1634.
According to "Passenger List, ship FORTUNE, 1621": "The ship Fortune
arrived at Plymouth on November 9, 1621, just a few weeks after the First
Thanksgiving. This passenger list is based on the 1623 Division of Land,
the passenger list compiled by Charles Edward Banks in Planters of the
Commonwealth, by material published occasionally by Robert S. Wakefield
in the Mayflower Quarterly, and by the information found in Eugene Aubrey
Stratton's Plymouth Colong: Its History and Its People. 1620-1691. The
author is descended from Fortune passengers John Adams, William Bassett,
and Moses Simmons." Among those pasengers listed is Deane, Stephen.
"Division of Land, 1623: In 1623, the Pilgrims divided up their land.
The people mentioned in the Division of Land came on the Mayflower
(1620), the Fortune (1621), and the Anne (1623). A couple may have
arrived on the Swan (1622) or the Little James (1623), but these were
small ships carrying mostly cargo. The Division of Land is recorded in
Volume XII of the "Records of the Colony of New Plymouth", and reprinted
in the "Mayflower Descendant", 1:227-230. Each family was given on acre
per family member...These lye beyond the fort to the wood west...Stephen
Dean 1...Moses Simonson & Philipe de la Noye 2..."