John Gell to Major Sanders 'I desire you and your regiment to follow in the rear and take all advantages that may be, but with the caution that the regiment be not too far engaged - when the enemy is to go or pass through any street or lane you may engage as may as you think fit for you to fall on with your horse and do your work quickly - you had better spare some of Captain. Greenewood's horse and send for the dragoons to make good your retreat - by this observation you will anger the enemy - take heed of ambustadoes [ambushes] - send to the Scotland horse to join you - I have directed one troop from Staffordshire to you'. 14 Aug 1645