President of the ANS from 1868 to 1870 and 1873 to 1883, it was due to Anthon that the Society made its initial efforts to transform itself from a group of local coin collectors to a recognized scholarly institution.
Assistant Curator, then Curator of the ANS from 1909 to 1912, Brett also served as honorary Associate Curator of Ancient Coins from 1923 to 1955 and Chair of the ANS Publication Committee from 1923 to 1946.
Andrew Zabriskie first joined the ANS in 1874 and became a life member in 1894. He served initially as Third Vice-President from 1880-83 and then as First Vice-President from 1884-96 before finally being elected President of the ANS in 1896. He remained as President until his resignation in December 1904.