Organizations involved in: Typo fixing, replaced: Endowmentt → Endowment, per source← Previous revisionRevision as of 13:00, 13 November 2026 Line 16: Line 16: ===Organizations involved in=== ===Organizations involved in=== Gregory was highly active in a number of scientific organizations. He was long involved with the [[American Ornithological Union]] (AOU). He aided the organization with his business connections and expertise, serving on various financial committees between 1943 and 1960. He served on the Endowmentt Committee (1943–1949), Finance Committee (1951–1954). He was chairman of the Investing Trustees (1956–1960). Gregory was highly active in a number of scientific organizations. He was long involved with the [[American Ornithological Union]] (AOU). He aided the organization with his business connections and expertise, serving on various financial committees between 1943 and 1960. He served on the Endowment Committee (1943–1949), Finance Committee (1951–1954). He was chairman of the Investing Trustees (1956–1960). Gregory and his brother, Tappan, were both founding members of the Kennicott Club at the [[Chicago Academy of Sciences]]. It was founded on April 28, 1930. He served as a counsellor of the Kennicott Club (1930–1932 and 1933-1934), and served as its vice president (1932–1933) and president (1933–1934). Gregory and his brother, Tappan, were both founding members of the Kennicott Club at the [[Chicago Academy of Sciences]]. It was founded on April 28, 1930. He served as a counsellor of the Kennicott Club (1930–1932 and 1933-1934), and served as its vice president (1932–1933) and president (1933–1934).