Was Colonel Hewson a Cobbler?

Hume's History relates that "Colonel Hewson suppressed the tumult of London apprentices, November, 1659:" and that "he was a man who rose from the *profession* of a cobbler to a high rank in the army." Colonel John Hewson was member for Guildford from September 17, 1656, to January 27, 1658-59. (Bray and Manning.)