If you don't mind me asking, are you using Ancestry at all? Have you found Census information
for 1841 onwards to confirm all of these births etc. for the Saunders family.
Our grandfather William George Saunders migrated to Australia in 1866 where his Mother Maria re-married in Sydney to William George Todhunter. We have much history in regard to the Todhunter family. Maria Saunders (nee Cox), William Saunder's wife, was Grand-daughter of Francis Cox the convict transported to Australia on the 2nd Fleet. Francis Cox's daughter Sarah Cox married William Charles Wentworth, Vaucluse House in Sydney is where his family lived, and Blaxland, Wentworth & Lawson were the first to cross the Blue Mountains in 1813.
So we have quite an amount of history for this side of the family. Our Grandfather William George Saunders spent much time with the Wentworth family, both in England, and on the properties owned in Warren, namely Haddon Rig, and other places in Queensland, working for Cobb & Co. coaches.
I look forward to hearing further from you.
jan