John Rosemergy Flora Spiller Marriage Bendigo 1869

I am tracing the parents of my Grandmother, Sarah Eliza ROSEMERGY (1904 m. James David EAGER b.1880 Waratah d.1954 in Reefton New Zealand) Sarah was born 1884 in either Bendigo or Waratah (probably Waratah) & d. Reefton New Zealand in 1974.

Two families of Rosemergys arrived from Cornwall in 1860 in the ship "Adamant" the families were John ROSEMERGY (B. 1823) and James Henry ROSEMERGY (B.1845 d. 1891 Vic.) the person of interest is John ROSEMERGY (b. 1846 in Cornwall & d.1892 in Clifton Hill Victoria) he was a son of John above. Although the marriage to Flora SPILLER is recorded, there is no info. on any offspring or death of either John or Flora. At this stage, by the process of elimination, I believe Sarah belongs to this John & Flora - it is also likely that one Gillian Patrica ROSEMERGY was another child by them. Both Sarah & Gillian spent much of their childhood in Waratah.

Any help would be appreciated.
Graeme