Your Henry is most likely Johann Heinrich; born 2 Nov 1842 in Rabber, Hanover. He married Maria Elisabeth Schmidt on 04 Dec 1873 at St. John's Lutheran Church in Euclid Twp. (now South Euclid), Cuyahoga Co. OH. I know nothing about her parents, but have extensive info. for his ancestors. His parents were Gerhard Heinrich (born 17 Aug 1811 in Rabber; died 27 Mar 1888 in S. Euclid) & Maria Eleonora Sommer (born 23 April 1813 in Rabber; died 01 June 1868 in S. Euclid). They were married 14 Nov 1839 in Barkhausen, Hanover. His parents were Herman Heinich Melcher & Charlotta Louisa Kahmeyer; married in Oct 1809 at Trinity Lutheran Church in Barkhausen. Let me know if you want additional details.