Nathan was born on April 1, 1845 in Chapsave, Austria-Hungary. He was the son of Lillian Friedman Rosenbaum (1844-1908) and Leopold Rosenbaum (1845-1912). He married Jennie Kaber in 1897. They had the following children: Walter Rosenbaum (1897-1981), Darwin Rosenbaum (1900-1908), Zelma Rosenbaum Morris Passell (1901-1995), and Joseph Rosenbaum (1905-1979). Nathan was in the shoe business in Youngstown, OH. He died on February 8, 1962 in Youngstown, OH.
*Photo from the collection of Rob Rosenbaum, grandson of Nathan Rosenbaum.