On 21 July 1403 he fought on the Royalist side at the Battle of Shrewsbury for Henry IV and was awarded by the King, a sum of £38 and two horses which had belonged to the rebel Henry Percy (Hotspur) [REF].
On Friday 25 October 1415 Thomas and his Men at arms, including a group of archers known as "the Kendal Bowmen", were part of the army of King Henry V which won a major battle at Agincourt in North West France against superior numbers.