Deposition of William Round, aged 32, dated 12 September 1694; states that in May 1693 Stephen Horsey made him ships master of Horsey’s ship bound for Barbados, with a large cargo of tobacco belonging mostly to John West, Court Clerk of Somerest; on 8 June 1693 the ship was taken by the French
There is an earlier 1689 Maryland record that indicates William Round was the commander of Ketch Snow Hill Merchant, built in new England.
So, now we know that William was born around 1662. His will indicates wife Mary, sons Edward (possibly born in England bef 1690) and James (born in Somerset, Maryland 8 Jan 1693). A third son, John, born in Somerset 20 Apr 1690, apparently didn't survive to 1717. Maryland Oath of Fealty (and a zillion other colonial records) also lists James Round, brother to William. James died without children; his will left some of his substantial estate to William's childen James and Edward.
Wills seem to document James (1693-1738) Rownd's descendents fairly well.
What I am not finding is any record of Edward's family. Dave Fletcher believes Edward married Temperance and had children James, William (b. 1722), and John. Records supporting this don't seem to be online. Was Edward's family raised in England? What are the sources for this info?
As a side point, since William "Mariner" Round/Rownd ship was built in new England, is it possible that the Maryland Rownd line is tied VERY CLOSELY to the Massachusetts/Rhode Island Round line?