Hi Jackie
I did know about the Pembroke dockyard, but unfortunately I've no address. I didn't know about the Devonport connection until the 1851 census went live on Ancestry, I thought her parents might have still been in Pembroke, but they were in Sheerness, born Devon, with all the children born in Pembroke! Jane was born in 1826, so no birth certificate

just parish records, and I live rather a long way from Sheerness or Pembroke!
Just one of those things....
Veron