By 1905, disillusioned by the church's attitude to poverty, D'Aeth (at the same time as his vicar) abandoned his clerical career, taking an appointment as junior lecturer at
Liverpool University. He was the first paid lecturer in the newly formed School for Social Work Training. D'Aeth was integral to the development of the School as a centre for training. In 1909, D'Aeth became Director of Reports for the Liverpool Council for Voluntary Aid, in which position he ably co-ordinated diverse charitable organisations both within Liverpool and farther afield, in "the pioneering use of outstanding social administration skills". His writings include
Present Tendencies of Class Differentiation (1910), ''The Liverpool Social Worker's Handbook
(1913), The Unit of Social Organisation in a Large Town
(1914), and The Juvenile Adult Problem'' (1917). ==Personal life==