His father served as a captain in the Confederate Army during the American Civil War and founded the firm S. Stroock & Co., which manufactured felts, plushes, woolens, and blankets, at Newburgh, New York, in 1870.

In World War I, he was a member of the New York City board of appeals under the selective service law.

In 1931, he was named chairman of the Character and Fitness Committee of the New York State Supreme Court, Appellate Division, First Department.

[2] Stroock was chairman of the board of directors of the Jewish Theological Seminary of America and president of its library.

He was also member of the American Jewish Historical Society from 1901 until his death, and in 1903 he published a study in the Publications of the American Jewish Historical Society on the diplomatic controversy between the United States and Switzerland concerning the status of Jews in two Swiss cantons, one of the first authoritative investigations on the subject.

[1] Stroock died from a heart attack while vacationing at the Greenbrier Hotel in White Sulphur Springs, West Virginia.

[6] Several hundred people attended his funeral at Temple Emanu-El, including distinguished jurists and representatives of Jewish organizations.

The honorary pallbearers were William Rosenwald, Irwin Untermyer, Paul F. Warburg, Henry Ittleson, Judge Irving Lehman, Dr. Sol Lowenstein and Samuel Leidesdorf.