The regiment survived Hampden’s death and was briefly commanded by Lieutenant Colonel William Barriff who died in July 1643. He is chiefly remembered as the author of “Military Discipline: or The Yong (sic) Artillery Man”. He was succeeded by Colonel Tyrill and the regiment saw action at the First Battle of Newbury on 20th September 1643, Lostwithiel in August 1644 and the Second Battle of Newbury in October 1644.
In October 1644 command passed to the future regicide, Colonel Richard Ingoldsby. He had been an officer in the regiment since long before Hampden’s death. Richard Cromwell said of him “Here is Dick Ingoldsby who can neither pray nor preach, and yet I will trust him before ye all”. The regiment was absorbed into the New Model Army in April 1645 as Colonel Ingoldsby’s Regiment of Foot and it was still in existence at the time of the Restoration in 1660.