 He is one of four men by the surname of Munroe recorded as being captured at the Battle of Worcester in 1651 and transported to America during the Wars of the Three Kingdoms as an indentured servant.He is likely to have been fighting alongside other men from the Clan Munro such as Sir Alexander Munro of Bearcrofts who was fortunate enough to escape.William is almost certainly one of four men transported on the ship called the "John and Sara", though the record of this has been damaged so that his first name is obscured.