This is excellent news. My great grandfather was Henry George Louis Arthur Pye, your grandfather's brother. He married Charlotte Reeves on 23/3/1875. His father William Charles also had an elder brother, Henry Charles b.16/11/1806. Their parents were Henry Elizabeth, but I have not found any more information regarding them.
In 1851 your grandfather was living at 14, Nelson Terrace, Islington, with the rest of the family, an apprentice a nurse. (presumably to look after Susannah Edwards second child, a ten day old boy as yet un-named at the time of the census.
I would love to hear more about your side of the family.
I also have a couple of photos which I understand to be William Charles Henry.
My email address is firstname.lastname@example.org
perhaps I could scan them and email you with them.