Lambe has been capped at full international level by Bermuda, whilst Ainsley is the third member os his family to have represented Town, with brother Stuart having played fot the academy, and father George having played for the club in the 1970s.
Confirming the News, Ainsley told the EADT: "Obviously I'm very pleased that I have done enough to win a one year deal and hopefully I can go on now and catch the eye of the manager."