He was born in Clapham, Surrey in 1852, the son of Revd. William Bainbridge Calvert (1821-1892) and Charlotte Caparn.
He was educated at Tonbridge School and articles to M.M. Kirkland of Huddersfield. Afterwards he spent time with the Borough Surveyor of Huddersfield, and then 3 years in the practice of Evans and Jolley in Nottingham.
He set up in independent practice in Nottingham in 1879. He was later in partnership with William Warren Wright, but this came to an end in 1891.[2] By 1905 he was in partnership with William Richard Gleave.
On the 9 September 1880, he married Mary Caroline Holmes in Huddersfield. They had 5 children:
Kathleen Mary Calvert (1881-1969)
Charlotte Helen Calvert (1883-1925)
Margaret Esther Calvert (b. 1885)
Charles Henry Calvert (1887-1958)
Muriel Calvert (1888-1959)
Humphrey Calvert (1902-1961)
He died on 1 September 1922 at 18 Dagmar Grove, Nottingham and left an estate of £1,170 4s. 9d. (equivalent to £80,700 in 2023).[3]
^Brodie, Antonia (20 December 2001). Directory of British Architects 1834-1914: Vol 1 (A-K). Royal Institute of British Architects. p. 323. ISBN0826455131.