He was a great benefactor to the city, in the time of Edward IV, for following the charitable example of that prince, Sir William Chester, knt. and alderman, and John Calthorp, citizen and draper, at their own expense, made the brick walls, and way on the back side, which lead from the said hospital to the hospital of St. Bartholomew ; they also covered and vaulted the town ditch from Aldersgate to Newgate, which before was very noisome and contagious to the said hospital.