See also

• Sydney DENNIS's parents: William DENNIS (1831- ) and Amelia Hannah Jane BROOK (1843-1928)
• Sydney DENNIS's siblings: Thomas Henry DENNIS (1873- ), Emily Amelia DENNIS (1875- ), Elizabeth Alice DENNIS (1877- ), Edgar William DENNIS (1878- ), Ethel Mary DENNIS (1879- ), Hilda May DENNIS (1882- ) and Alfred Ernest DENNIS (1885- )