My father-in-law is Robert Albert Dayne. He was born Albert Dayne but later changed it to Robert. His father was Max (Maximillion) Dayne and was married to Clara Gönne. I was also told by my father-in-law that they used to spell it with an "H" but changed it to make it sound more american. It also had a "von" in front of it (von Dahn). My father-in-law was born in NY in 1911. He had a sister named Dorothy.