Thanks for all the posts, info and idea's.
The Freemantle Prison record DoB is at odds with the Clyde's 1863 record for Convict 7235 which shows him as being 37 during the voyage. Joseph & Lydia christened a boy Herbert in Ecclesall in 1827 so he should have been 36/7 at this time. He was a Sickle Smith in High Lane prior to his crime, which shows on the prison record. Conviction date at Derby matches exact.
Thirteen years between conviction and transporting is strange but partner in crime George Harrison was 12 years before being transported on the Norwood.
The Clyde shows he was married but no children. I had him married to a Sarah Ann Harrison in 1847. In 1851 when Herbert was in Derby Prison, there was a Sarah Rippon, 3 children and a SiL with no husband in High Lane. She was listed as a Pauper. Have not really looked further into this yet but this is my next quest. Want to keep on trail of Herbert at this time.
Out of interest, if you are able to look at the 1841 census slide for the Joseph, Lydia and son Herbert Rippon in High Lane, on the left page there are White Lane records. Note that there is a family called Harrison with children George and Sarah.
Can find no matching records for Herbert Rippon born Little Common or Ecclesall between 1847 and 1871 other than these criminal and transportation records.
The 1881 Herbert Rippon, 53, born Little Common, living in White Lane with Ellen Hague 22 is definitely our GGF. Grave stone tells me so. Have not found a marriage record for them even though she is shown as Ellen Rippon on GF birth certificate. She is Ellen Hague on Herbert's death certificate.
The 1871 Herbert Rippon, 43, born Ecclesall, living in High Lane with widowed mother Lydia is almost certainly the same man. It would seem that if he did come back from Australia, Sarah had not waited for him. Probably, a very sad tale awaits me.
Hope this clears up a few things.
Still hoping for proof of Herbert Rippon in Australia after 1871 or return journey details.