Complex sentence: From 1922 to 1946, he was an attorney for the Federal Reserve System, ending his career there as General Counsel of the agency, and from 1936 to 1946, he also served as counsel to a related agency, the Federal Open Market Committee.
Split into simpler sentences: From 1922 to 1946, he was an attorney for the Federal Reserve System, ending his career there as general counsel. From 1936 to 1946, he was counsel to the Federal Open Market Committee.