Over the years I have developed a few rules of research which tend to find application over and over.One of them is: "If you can't be precise, be consistant". The other is:"If you are consistant in your error it will eventually correct itself".
I have research on a particular military unit with a soldier named Rigapoulos.It took years to locate his family as he had two brothers, also in service.Their names, according to the Army, were RiOpoulos and RiGGapoulos.If either one went looking for HIS info with any other spelling they would not find it.One eventually changed his name to Rigas--and curiously that is how I found him.
I have another soldier named Byrne, who was incorrectly listed in records as Burns, and a MOrtzfeldt listed as MErtzfeldt.
And in the most obvious case I have a man who was a member of the 504th Parachute Infantry Regiment of the 82nd Airborne Division and earned the Distinguished Service Cross and was KIA in Normandy, buried in Alabama and his government supplied headstone proudly proclaims that he was in the 503rd PIR which just happens to have served in the Pacific.
So you see--just because it is "carved in stone" doesn't make it true.
"Nothing is a fact until you can't disprove it."
"A bad detective always looks for clues under the street light."
Just some things to ponder as you continue your search.
Best of Luck and keep us posted on how it turns out.