Thomas Cassidy was the son of Thomas and Alice Cassidy of 172 Northumberland Street, Toxteth Park
 
A report on his death appeared in the Liverpool Echo on the 1st June 1915. His photo appeared in the report and is reproduced here with the kind permission of the Liverpool Daily Post & Echo.
 
CATHOLIC INSTITUTE OLD BOY.
   Private T. Cassidy, B Company, 9th Battalion King's (Liverpool) Regiment, who resided with his parents at 172, Northumberland-street, Liverpool, was killed while carrying ammunition. He was an employee of the Mersey Docks and Harbour Board (weights and scales department). He was a Catholic Institute Old boy, formerly of St. Vincent's.

Liverpool Echo 1st June 1915