Otto Wilhelm Christian Schack (1818 – September 1, 1875) was a Danish born American broker.
[3] Otto "received a careful education up to his seventeenth year, when he came to the United States under the charge of Mr. Rudolph Braüm, one of his father's many warm friends.
"[1] In 1848, he began a career on Wall Street, becoming a broker-dealer and a member of the New York Stock Exchange in 1851.
[6] Together, they lived at 173 Madison Avenue and were the parents of:[7] Schack died at his residence in New York City on September 1, 1875.
After a funeral at New Jerusalem Church on 35th Street in Manhattan, he was buried at Green-Wood Cemetery in Brooklyn.