He was the son of Samuel McManus and Jane (Booth) McManus. In 1911, the family were living in house 14, Market Square (East Side), Dungannon, Co. Tyrone.
In 1911, a Herbert McManus is boarding in house 59, Willowbank Street, Clifton Ward, Belfast. He was aged 23 and a Bank Official Accountant.
A descendant (via a cousin of Hubert's), Alastair McManus (Canada) has sent me this information:
" .... Hubert emigrated to Canada in 1911 (or 1912) with his younger brother Randal (killed in WW1), probably going to stay with their older brother Harold. Hubert worked in the North Bay, Ontario, branch of the Imperial Bank of Canada, 210 miles north of Toronto. However, on the outbreak of war, both he and Randal returned to Ireland in 1914. Hubert enlisted in the North Irish Horse. He was later commissioned and was invalided from service in 1917. He returned to the Belfast Bank in 1918 and remained in Belfast for the rest of his life. ...."
Hubert McManus was a member of the Belfast Banking Company Sports Club in April 1947 paying 5 shillings subscription and was recorded as being in Head Office.
Hubert's brother, Randal Edmund is detailed on the Commonwealth War Graves website as follows:
Son of Jane McManus, 6 Howard Terrace, Dungannon; Lance Corporal, Army Number 41505, died 19/04/1918 aged 26, 9th Bn. Royal Irish Fusiliers, commemorated on Pane 140 to 141, Tyne Cot Memorial.