Just what can you believe on a certificate! 
On John Rowson's marriage certificate for 1885 he has his father Thomas Rowson down as Musician, on all the census I have found his father was a lamplighter.
So I was beginning to think I had the wrong family(as you would) - so today I set about searching for other candidates. After some digging I was unable to find any other candidates BUT looking at the 1881 census Johns brother Thomas Rowson was there as a 'teacher of music' and as the brothers age is against him being Johns father I am forced to assume it was just wishful thinking on Johns part!
Peter
On John Rowson's marriage certificate for 1885 he has his father Thomas Rowson down as Musician, on all the census I have found his father was a lamplighter.
So I was beginning to think I had the wrong family(as you would) - so today I set about searching for other candidates. After some digging I was unable to find any other candidates BUT looking at the 1881 census Johns brother Thomas Rowson was there as a 'teacher of music' and as the brothers age is against him being Johns father I am forced to assume it was just wishful thinking on Johns part!
Peter