BSc Liverpool 1923; MB BS Lond 1927, MD 1928; MRCS Eng 1926.
Maher was renowned as a pioneer in pain relief, and in 1957 founded the first clinic for pain relief. He studied at the University of Liverpool where he was assistant demonstrator in anatomy. Maher held resident appointments at Liverpool Royal Infirmary, the National Heart Hospital, London, and Westminster Hospital where he was a research scholar and assistant in the cardiographic department. He was medical officer to London County Council in the early 1930s and developed his experience in diseases of the chest. From 1935 to 1940 he was physician to the Boundary Park Hospital, Oldham, where he was closely involved in the reorganisation of the Hospital and building of a new maternity suite. He served as medical specialist during the war, and when he returned he entered consulting practice. He was consultant physician to Manchester Regional Hospital Board Pain Relief Centre, Aitken Hospital Bury and Birch Hill Hospital Rochdale. Maher was a fellow of the Royal Society of Medicine and the Medical Society of London. In 1975 his pioneering work in pain relief was recognised when he was made the first honorary vice president of the Intractable Pain Society. Maher died on 30 July 1989.