Hannah Maria Holligan married Robert Grocott who was a gardener at Charnwood. Hannah died in 1877 aged 91 years. Robert died 1874 aged 79 years. Both are buried in St Paul's Cemetery, The Glebe, Ginninderra.
See Appendix A, Biographical Notes (under husband's name) in Gillespie, Lyall L. Ginninderra, forerunner to Canberra : a history of the Canberra District, published in 1992 (CDHS Library)