Hendrik Lorentz International Member (elected 1906)
July 18, 1853 - February 4, 1928

Wilhelm Ostwald International Member (elected 1906)
September 2, 1853 - April 4, 1932

Benjamin Peirce Member (elected 1906)
February 11, 1854 - January 14, 1914

Josiah Royce Member (elected 1906)
November 20, 1855 - September 14, 1916

William Scott Member (elected 1906)
February 12, 1858 - March 29, 1947