He was commissioned as lieutenant by the Committee of both Houses on 23 September 1645 to take charge of some recruits at Reading.
He fought as a captain at Denbigh in 1646 and was appointed with others on 15 June 1649 to demolish Montgomery Castle.
He had a commission from the Council of State as captain of a troop of Horse for North Wales on 13 August 1650.
The Commissioners for Sequestration in London wrote to him and Edward Vaughan on 9 September 1650 " We commend your diligence, go on in seizing estates" and he was mentioned on 24 October 1650 as the " Treasurer of the moneys got in".
The Secretary of State issued an order from Whitehall on 18 July 1660 " that Richard Price of Aberbechan, co. Montgomery, be taken into safe custody," and in 1665 a warrant was issued to Sir Richard Ottley to apprehend him and others.