Hello, I have quite a mess when it comes to adding my Great Grandpa. I hope i explain this as clearly as possible. He was born Albert De Boer, we don't have birth or baptism record so the first official record of him is the 1900 census where the name is spelled Deboor, but his WWI registration, signed by his own hand spells it De Boer, not to mention later cousins who sent us information spell it DeBoer. On top of this, he left home, sometime between 1917 when he registered for . the Army, and 1925 where he reappears in Muskegon, Michigan as John Ackerman when he married my Great Grandma, he unofficially changed his name by taking the name of a nice man he met on a train. In 1951 when Social Security came into being he met with a lawyer, who told him he had been using the name for 10 years, so he didn't have to worry about it. So i understand that I will put in his LNAB as one of the versions of De Boer, I understand the Dutch Roots policy of using the de Boer version for people born in the Netherlands, but he was born in America, and I understand I will add Ackerman in the name at death area, but because the earliest known record, the 1900 census, is an incorrect spelling, can I use his WWI registration for his LNAB?
Thank you in advance for your kind help!