1927- 9 October 2001, formerly of Blackrock and Cabinteely, Freeman of Waterford City, Senator 1973 –1977, chairman Waterford Glass from 1967. Son of Joe GCSS. His other directorships included the Bank of Ireland, and the Investment Bank of Ireland. He was a member of Seanad Eireann from 1974 to 1978. appointed a Knight of t Gregory 26 June 1984.
In the early 1980s he donated Cabinteely House and Park to the then Dublin County Council and it was opened in 1981 by the then chairman and subsequent Ceann Comhairle, Deputy Seán Barrett. He was keenly involved in the racing industry and his familiar colours were carried to success on many tracks, in particular by Levmoss, the only horse to win both the Ascot Gold Cup and the Prix de l'Arc de Triomphe. Father Peter Lemass (OBIT 1988) appealed to the then Archbishop of Dublin, Dermot Ryan in relation to the then financially troubled Catholic Standard. He in turn sought help from a number of people, including Eamonn Andrews KSG the TV entertainer and Denis Coakley, the head of Erin Foods, who became board members. Each donated several thousand pounds to save the Standard, with Paddy McGrath contributing at least £30,000. He subsequently became a director of the Catholic Herald and Standard. He was also a practising Catholic and attended Mass on weekdays as well as Sundays. He was a director of the Catholic Herald and of the Irish Catholic and Catholic Press. He was made a freeman of the city of Waterford, and among other honours he was Patron of the Royal College of Surgeons in Ireland. he was Patron of the Royal College of Surgeons in Ireland. He received a honorary doctorate from the National University of Ireland in 1984.
He received a honorary doctorate from the National University of Ireland in 1984. Buried, like so many more papal knights, in Deansgrange Cemetery.