Egon J. Salmon, who fled Nazi Germany with his family as a young boy, educated thousands on the lessons of the Holocaust by openly sharing his story, and established himself as a Staten Island community leader as founder of the borough’s oldest independent real estate firm, died Wednesday at home in Maplewood, N.J. He was 98. Born in Germany in 1924, Mr. Salmon was 9 when Adolph Hitler came to power. Five years later, after his father was arrested because of his Jewish faith, Mr. Salmon left Germany with his mother and brother and eventually found safety in the U.S....