Henry "Harry" George Grey was an English missionary and theologian who served as third Principal of Wycliffe Hall. Grey was the second son of Admiral George Grey and thus a grandson of Prime MinisterEarl Grey. Grey was educated at Wadham College, Oxford, graduating BA in 1873 and MA in 1876. After a training curacy in the London slums, Grey served as Vicar of Holy Trinity Church, Oxford from 1876 to 1885. The greatest part of Grey's ministry was spent as an agent of the Church Missionary Society in British India, particularly areas which would later become Pakistan, including Quetta, Amritsar, Lahore, and Gojra. He began work in this field just as Bishop Valpy French was leaving it due to ill-health. Grey's work in the region was described by Thomas Ewing as earnestly labouring 'in a more honourable part of the master's field'. Grey returned to England and served as Principal of Wycliffe Hall, Oxford in succession to Francis Chavasse from 1900-05 & 1910-18, during which time he completed a number of scholarly works. Although Grey resigned the Principalship in 1905 for a second tour of service in India, he returned within five years. Grey worked intermittently during this time and beyond as Examining Chaplain for Chavasse, who had moved to serve as second Bishop of Liverpool. The final years at Wycliffe were clouded by the First World War, during which the institution served to house refugees from Serbia and trainees from the Royal Flying Corps. It was Grey's second cousin once removed, Edward Grey, who for most of the war was directing British foreign policy. This may have been the reason for the Flying Corps' stationing at Wycliffe. After living at the Hannington Hall 1915-1921, and suffering acutely from arthritis, Grey finally left Oxford to live with his sister, Mary Elizabeth Grey at Moreton PinkneyManor House. Following Grey's death in 1925, Chavasse published a biographical tribute to his old friend which includes a selection of Grey's sermons.