thank you for all those with trying to help. Frederick Tyler Russell is a puzzling one. I am trying to work out if there is only one or two. The information I have, said the one born in Woolwich, Kent is the one married to Jane Burt 1845. It is possible that this Frederick came as a convict 1847 Australia on the Marion supposedly to Tasmania but I cannot find any more information on him until he is have children to Jane Burt 1853 Victoria and a couple of children after this, his occupation is a chemist/druggiest and he then marries 1874 to a Jane Small and he is a druggiest.
The other Frederick Tyler Russell marries a Frances Sweeney in 1855 in Victoria but they have a child called Frederick in 1854, and on this marriage and birth the child's father is called Frederick Russell but no Tyler in the middle. but he is a Surgeon and born Gravesend, Kent. This Frederick born 1854 marries in Queensland and he is known as Frederick Tyler Russell. In a newspaper announcement for this marriage it said that Frederick Tyler Russell was the second son of Frederick Tyler Russell, Surgeon of London, when he dies 1938 the information says his father is Frederick Tyler Russell and Frances Sweeney.
On the marriage to Frances Sweeney it did say that Frederick was a widow of 6 years and had 2 children deceased this is a mystery too?

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So now you see my dilemma is this Frederick Tyler Russell that marry's Emma Underwood is he a surgeon too? Is he the same one that marry's Jane Burt? Is he the same one that marry's Frances Sweeney?
I have even looked at his marriage signatures that I have to Frances Sweeney and Jane Burt and Jane Small but they don't seem to match.
Both Fredericks are born around the same time and I cant pinpoint him in the censuses
Leonie