Searching for the parents of my greatgrandfather James Cornelius Van Maanen, born at Niemegen in June 1827. His fathers first name was Francis/François? He studied music and came to England where he was a Violinist, then a Bandmaster, ending with the Royal Irish Constabulary, also a Composer, etc. We know he had a sister called Anna. I am trying to find his mothers name? Hoping someone can help.