1829 Marriage Record:3115 Putney, England (St Mary Parish). Robert Constant of this Parish, Bachelor, and Ann Vincent, Spinster, of this parish, were married in this Church by Banns no. 78 this twenty day of September in the Year One thousand eight hundred and twenty nine by me Robert [illegible]. This marriage was solemnized between us Robert Constant and Ann Vincent in the presence of Geo Rogers, Nanny Nicholls, and Mary Ann Robinson.

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

1841 Marriage Registration: Robert Constant and Henriette Frances Tantz, 1841 Q2 Apr-Jun, Kensington, Greater London, London, Middlesex, v. 3, p. 244 (FreeBMD)

1851 British Census:3002
Middlesex, England (St. Marylebone; St. Mary Ecclesiastical Parish; Marylebone Registration District)
Enumerated 30 March 1851
54 Gloucester Place
Amelia Saulz •• head, widow, 56, fund holder, born Marylebone, Middlesex
Henry •• son, unmarried, 28, house decorator, born Marylebone, Middlesex
George Reynolds •• grandson, unmarried, 9, scholar, born Marylebone, Middlesex
Arthur Reynolds •• grandson, unmarried, 7, scholar, born Marylebone, Middlesex
Robt. Constant •• servant, married, 59, servant, born Bedfordshire
Henriete Constant •• servant, married, 49, servant, born Marylebone, Middlesex
Robt. Constant •• servant, unmarried, 16, errand boy, Hammersmith, Middlesex

1852 Death Registration of Henriette Constant: Henrietta Constant, death, 1852 Q2 Apr-June, Marylebon, London, Middlesex, v. 1a, p. 265 (FreeBMD)

1852 Marriage Registration of Robert Constant: Robert Constant and Blanche Spicer Cheek, marriage, 1852 Q4 Oct-Dec, Marylebone, London, Middlesex (FreeBMD)

1867 Death of Blanche Constant: Blanche Constant: death, 1867 Q3 Jul-Sep, Hastings, Sussex, v. 2b, p. 15 (FreeBMD)

1868 Death Registration: Robert Constant, death, 1868 Q2 Apr-Jun, Hastings, Sussex, v. 2b, p. 9 (Free BMD)