Henry Dumbrell was born 18 June 1850 in Woodstock, Jamberoo, New South Wales, Australia to William Dumbrell (1815-1876) and Harriet Dearling (1823-1900) and died 25 December 1941 a private hospital, Randwick, New South Wales, Australia of unspecified causes. He married Martha Susannah Organ (1860-1929) 1879 in Wollongong, New South Wales, Australia.
|Offspring of Henry Dumbrell and Martha Susannah Organ (1860-1929)|
|Herbert Percival Dumbrell (1880-1943)|
|Harrie Leslie Dumbrell (1885-1960)|
|Percy William Milton Dumbrell (1890-1955)|
|Garnet Stanley Grover Dumbrell (1893-1982)|