Richard Leon Lyons - Thomas Adam Lyons

I am a descendant of Thomas, his father was Richard Lyons and his mother Mary Adams,
I have no idea when Thomas came to Australia, He married a Rhoda Ann Pridmore 1865
they had 12 Children and lived around Echuca, Victoria, Australia and Moama NSW.
I have just found the connection to Robert Arthur Lyons of Chicago, Illinois, USA.
Would like to fill in some gaps if someone can help.
thanks Lyn Briggs - spag52@bigpond.com