It appears that the spelling of the name determines whether a Reichenbach is German Lutheran or German Jewish. My family is German Lutheran but lived in Poland.
A Relative living in Germany sent this to me to explain this situation.She wrote:
Our Ancestors came from Germany (the whereabouts are probably middle/southwest Germany).
Around 1700 they went to Poland, as the polish king recruited German people to come to Poland.The King promised them free farming land; in exchange they had to cultivate the land.Our ancestors spoke and wrote German and they kept their Lutheran religion (the polish people are catholic).They had their own German schools and churches, but they lived in Poland.
Since Poland was always under different rulers (Russia, Poland, Germany) there was always a change in citizenship, but our ancestors stayed German.The parents had to prove their German heritage during WWII, going back as far as 4 or 5 generations, since they were living in Swiniary, Poland at the time. They had all that information (from church records, etc) but when we immigrated (actually they fled to Germany in Feb./March 1945 during the war) then to the USA in 1951,all that information was left behind in Germany and was destroyed. This relative didn't state who the family stayed with while living in Germany, perhaps brothers to Heinrich Reichenbach (born Aug 13, 1857 in Swiniary, Poland; died: Feb 14, 1945 in Wolfshagen, Kreis Köslin Poland) married to Julianne Lange (b. March 31, 1866; died: 1943 in Swinary, Poland).Heinrich is the son of George (b. 1810) and Karoline Grehning(b.1812) Reichenbach; Julianne Lange was the daughter of Friedrich Wilheim (b.1815) and Karoline Krüger (b. 1820)Lange.Heinrich Reichenbach is the only child listed on my family tree line but could there have been more brothers and sisters? Many of the children born to Heinrich and Julianne died at a very early age. Only 4 of 11 children attained adulthood and all except for Josephine, the eldest, immigrated to either the USA or Canada. August (immigrated in 1911) and Julia (immigrated in 1945)came to the USA and lived in the Chicago area.Edmumd went to Canada in 1929. I don't know how much truth there is to this but was always told that Eddie Richenbacker aka Reichenbach, co inventor of Kodak film, was a relative.Eddie supposedly didnt know what he had invented and sold his patent rights really cheap and lost out on a fortune.As I stated above, how much that is true we will never know. And as my relative stated earlies, yes, our ancestors were from Poland, but they were German.