Lynn,
Records
West Yorkshire Archive Service — Leeds, Chapeltown Road, Sheepscar, Leeds, LS7 3AP. Holdings for "Leeds East Moor Community Home School": Admission registers (1864-1981); Discharge books (1892-1978); Punishment registers (1907-73); Minute books (1859-1973); Medical Officer's reports (1918-74); Headmaster's reports (1930-55); Deeds 1857-1938; Records of Whinmoor Remand Home (1933-85); Records of Ainsty Lodge Home (1976-84); Salaries and conditions of service (1935-36); Air raid precautions (1939-41); Staff register; 1893-1953); Visitors' books (1858-1970); Annual returns (1938-50); Wages book (1956-63); Plans (1870-1976); Admission register (1960-1990).
Maybe one of the Admission registers will give you the information that you seek:
I had a look in the Leeds Mercury, online at many local libraries, and available at home with a library ticket, (19th Century British Newspapers), and although there is much about the Reformatory, including that boiler explosion, entering Albert Mower/James Mower/Mower, does not reveal anything at all.
Tom