Thanks Geoff.
Given these last time around but nothing definite.
1851
Civil Parish: Hastings St Mary Magdalen
County: Sussex
GRANT Maria servant 29 Hastings, Sussex
1861
Civil Parish: Great Yarmouth St Nicholas
County: Norfolk
GRANT Maria Companion 39 Hastings, Sussex
Age not a good fit:
The Brisbane Courier (Qld. : 1864-1933) - Friday 26 September 1884 p.1
DEATHS
SLAUGHTER.-On the 17th September, at the residence of John Alfred Bale, Esq., Stoneleigh street Lutwyche, Maria, the beloved wife of Thomas Slaughter, sen., Esq., aged 55 years.
Toowong Cemetery
Portion 13 Section 65 Grave 7
Slaughter Maria F 18 / 09 / 1884 Unknown
Slaughter Thomas M 26 / 11 / 1887 88 years
Dave