Thanks for the replies,
I am not sure if John was in the Army, I did wonder that.
I looked on the Malta site & noted the bap for Rachel 1859 22nd Regiment and assumed that it was her, but it didn't actually give her parents name.
There was also a bap on the site,1866 Ann dr of John & Margaret 60th Rifles, so I posted a similar question on the Army board.
I did get a reply but that John Parker wasn't mine,
I can't find a census for 1861 in Lancashire for John & Margaret, but I now know that they were back in England by 1863, for the birth of son William, cert states John's occupation as Mechanic.
KR