Two local businessmen, Daniel Lee (d. 1858) and John Leeming (d. 1877), each donated £1,000 towards the cost of the church and furnishings; both benefactors are commemorated in chantries at the liturgical east end of the choir. The Cathedral's "east" window of 1856, by William Wailes of Newcastle, depicts the history of Catholic Christianity in England, from the conversion of Ethelbert by St. Augustine in 597, to the restoration of the Catholic hierarchy in 1850. The total cost of building the Cathedral was £18,000.