Stanisław Estreicher (1869–1939), Karol Senior's son, historian of law and bibliographer
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Tadeusz Estreicher (1871–1952), Stanisław's brother, chemist and historian
Samuel Estreicher | Tadeusz Estreicher | Stanisław Estreicher |
After law school Estreicher clerked for the late Harold Leventhal of the United States Court of Appeals for the District of Columbia Circuit, practiced with a union-side law firm, and then clerked for the late Lewis F. Powell, Jr. of the United States Supreme Court.