George Henry was educated at Oscott (a Catholic school in England) and at Cambridge. He also studied law in London for a short time but his interest was mainly in horses. In 1835 the Church at Carnacon was built at a cost £2,000. Moore contributed substantially to the cost. A painting of Crucifixion by James Browne was hung over altar (Painting missing after reconstruction). His brother Arthur Augustus was killed while riding Mickey Free in the 1845 Grand National. The grief stricken George Henry withdrew and shut himself in Moore Hall House, reflecting on the catastrophe of his brothers death and the plight of his hungry tenants.