As a teacher at St. David's College for over forty years, Wade exercised a lasting influence on generations of alumni of the College and through them on the Church in Wales. In his teaching he laid great emphasis on thoroughness, and on the unity of all knowledge. In a farewell message to his students he expressed the hope that they would ever make progress in learning and true godliness.
His literary output was considerable. It included Old Testament History (first edition, 1901; twelfth edition, 1934); New Testament History (first edition, 1922; second edition, 1932): commentaries on Genesis, 2 Samuel, Isaiah, and most of the Minor Prophets: and The Documents of the New Testament, 1934. He was also much interested in topography and was wholly or partly responsible for the volumes in the Methuen Little Guide series in South Wales, Monmouthshire, Somerset, and Herefordshire.
Thomas Iorwerth Ellis, M.A., (1899-1970), Aberystwyth