1830 Birth: 1830 birth year calculated from age of 11 years in 18412988 British census and confirmed by death certificate1951 issued in 1905. Birthplace in given in 18811411 census as Hammersmith, which was his residence in the 1841 census.

1841 British Census:2988
Enumerated 6 June 1841
Middlesex, England (Hammersmith Parish)
Robert Constance •• 40, male, "agg," born in Middlesex
John •• 11, male, born in Middlesex
Robt •• 6, male born in Middlesex

1851 British Census:3001
Middlesex, England (Hammersmith; St. Peter Ecclesiastical Parish; Kensington Registration District)
Enumerated 30 March 1851
2 Bevans Court Square
Caroline Baurdels •• head, widow, 35, fund holder, born Barnstaple, Devon
Sarah Wak •• servant, unmarried, 36, general servant, born Jewel, Somerset
John Constant •• servant, unmarried, 18, light porter, born Hammersmith, Middlesex

1862 Marriage Certificate:1697 Marriage solemnized at Christ Church in the parish of St. Marylebone in the County of Middlesex, 4 March 1862; John Constant, of full age, bachelor, servant, North St.; father, Robert Constant, servant; Elizabeth Freeman, of full age, spinster, North St.; father, William Freeman, wheelwright; witnessed by George and Sarah Moodie.

1881 British Census:1411
London, England (Islington)
Enumerated 3 April 1881
17 St. Thomas Rd.
John Constance •• married, age 49, male, born in Hammersmith, head of household, coal merchant
Elizabeth •• married, age 44, female, born in Alford, Hampshire, wife
Emily •• age 7, female, born in Wood Green, daughter, scholar

1891 British Census:2709
Islington, London, England (St. Marks Ecclesiastical Parish)
Enumerated 5 April 1891
52 Morey Road (one of three families)
John Constant •• head, married, 59, cab proprietor, neither employed nor employer, born Hammersmith, London
Elizabeth •• wife, married, 55, born Alresford, Hants
Emily •• daughter, single, 17, sorting clerk post office, employed, born Wood Green, London

1901 British Census:3003 (John Constant)
London, England (Kensington; St. Clement Ecclesiastical Parish; Kensington Registration District)
Enumerated 31 March 1901
185 Walmore Terrace
John Constance •• boarder, married, 70, (no occupation given), born in Hammersmith, London
One of two boarders in the household of Thomas and Mary Wallen.

1901 British Census:2505 (Elizabeth and Emiliy Constant)
Surrey, England (Wandsworth)
Enumerated 31 March 1901
76 Gaskarth Road
E. Constant •• head, widow, female, 65, living on own means, born Alresford, Hants
Emily •• daughter, single, female, 27, sorting clerk at P.O., civil servant, born Wood Green, Middlesex
This appears to be a two-family dwelling, with the other family being George R. Unwin, age 62, and his wife Sarah A., age 62, both born in the London area.

1905 Death Registration:1951 When and where died, 17th January 1905, Kensington Infirmary; John Constant; male; 75 years; occupation, cabman from 185 Walmer Road; cause of death, bronchitis, certified by H. Potter; informant, Emily Constant, daughter present at the death, 42 Woodbury Street, Forting (?).