Well, this is what I have so far. There were several Speedwells acccording to Deline Gray. At least two sunk and one was dismantled.
1) B. Biddlecome sent me a message on 4 Sept 2005 that William Bassett left Delft Haven on Speedwell 22 July 1620 to Southhampton with other Pilgrims.
2) Speedwell departed London for Virginia 1635 (Ship List: Mary W.).
The Speedwell set sail for America 5 Aug 1620 with the Mayflower but had to turn back due to a leak. Speedwell did sail 28 May 1635 (William Basford on board) on Speedwell to Jamestown, VA.
3) Ship and Passenger Information, Searcher's Office, Gravsend, Eng: "30th May 1656"; "they were landed at boston in N.E. 27th of the Moneth, 1656, J.E." from Mary W. 16 sept 2005).
Captain's of Speedwell:
a) Captain John T. Chappell "of London, Eng. was owner and master of the ship Speedwell, a sister ship of the Mayflower. the speedwell developed a leak and could not make the voyage with the mayflower, but sid sail 28 May 1635 from Southhampton (=London?) to Jamestown, VA. (Message: Annie, 20 Aug 2000).
b) James Creagh captained Speedwell arrived in America 25 Sept 1749.
c) Nicholas Stephenson, tobacco to London from Baltimore, MD and returned to Baltimore with indentured servants.
1765 early arrrivals to Penn colony on Speedwell.1)
Where can I find the "Ship List"?