Your grandmother was my grandfather's sister. Who was your father, I know one of her sons was Bob?? Bush who ended up in POW camps with my father. I have done quite a lot of research about the family and do have maiden name etc., for Sarah, from memory I think its Humphreys. Henry's sister arrived on the same boat to Adelaide one year later but I haven't pursued where they went. I believe grandfather had close family in New Zealand so that would be an option for us to look at. Henry and Sarah had a first daughter also named Ada who died and was buried in Adelaide. I have a copy of a family photo showing Henry and Sarah and can get a copy to you. I am sure you would like to have it.
Please email me firstname.lastname@example.org