In 1845 Howson, having taken orders, accepted the post of senior classical master at the
Liverpool College under his friend
W. J. Conybeare, whom he succeeded as principal in 1849. This post he held until 1865, In 1866 he left
Liverpool to become vicar of the
Parish Church of St Peter and St Paul, Wisbech, and in 1867 he was appointed dean of
Chester Cathedral, where he gave himself vigorously to the work of restoring the crumbling fabric, collecting nearly £100,000 in five years for this purpose His restoration created a great debate and led in part to formation of the
Society for the Protection of Ancient Buildings. His sympathies were with the evangelical party, and he stoutly opposed the "Eastward position," but he was by no means narrow. He did much to reintroduce the ministry of women as
deaconesses. The building of the
King's School for boys, and the
Queen's School for girls (both in
Chester), was due in a great measure to the active interest which he took in educational matters. Howson's chief literary production was
The Life and Epistles of St Paul (1852) in which he collaborated with Conybeare. ==Family==