Hi Mike,
It's a few years since your post, but what I have is a marriage certificate for Peter Byrom and Eliza Fitzsimmons. Married by Church of England 19 September 1836 in Glendon, New South Wales by chaplain G.K.Rusden. There is a town call Glendon on the Gwyder Highway west of Warialda.Other information we have on Peter is as a shepherd on George Blaxland's place Perby, Upper Hunter River.
It is in the 1828 Census and his previous occupation is down as Gentleman's Servant.
On the Baptism certificate their daughter Emely the surname is spelt Byron as it is on his Death Certificate. His occupation on the Death Certificate is Bullock Driver.
Hope this is of some use.
regards
Richard