Rothschild was born on September 4, 1869, to Frank and Amanda (née Blun / Blün) Rothschild in New York City and he was not related to the
Rothschild family of Europe. His brother was
Simon F. Rothschild. He was raised in a Jewish family and educated in public schools and received a B.S. from the
City College of New York in 1889, a Ph.B. from Columbia University's School of Political Science (later became the
Graduate School of Arts and Sciences) in 1890, and graduated from
Columbia Law School in 1891. He practiced law from 1891 to 1893 and was engaged in manufacturing from 1893 to 1902. His firm concentrated on arbitrage. == Philanthropy ==