Lamberton Family Genealogy Forum
I have some info from the Somerset County Council, Taunton, England that states:
"Thomas Trowbridge served as a Captain in the Parliamentary Army during the English Civil War."
This suggests that his reasons for leaving England in 1636 were religious, and that he returned to England to take part in the resistance to King Charles I. He served directly under the Roundhead leader, Robert Blake, commander of the besieged garrison of Taunton in 1645. He probably remained in England to enjoy the more liberal regiime of Cromwell's Commonweatlh. By the time the restoration of Charles II took place in 1660, he would have been at least 60 years old, and probably too old to return to America.
Hope this helps.