| Date | Event |
|---|
| 1858, Dec. 19 | Born, Camden, N.J. |
| 1873 | Introduced to Walt Whitman upon the poet's arrival in Camden, N.J. |
| 1885 | Founding member, Society for Ethical Culture, Philadelphia,Pa. |
| 1886 | Founder, Contemporary Club, Philadelphia, Pa. |
| 1890s | Clerk, Farmers and Mechanics Bank, Philadelphia, Pa. |
| 1890-1919 | Publisher and editor, Conservator |
| 1891 | Married Anne Montgomerie |
| 1892 | Appointed literary executor by Walt Whitman |
| 1894-1918 | Secretary-treasurer, Walt Whitman Fellowship |
| 1900 | Published the introduction to Homer Davenport, The Dollar or the Man? Boston: Small, Maynard & Company |
| 1903-1907 | Associate editor, Artsman |
| 1904 | Published Chants Communal. Boston: Small, Maynard & Company |
| 1906 | Published With Walt Whitman in Camden. Boston: Small, Maynard & Company |
| 1910 | Published Optimos. New York: B. W. Huebsch |
| 1914 | Published Collects. New York: A. and C. Boni |
| 1919, Sept. 8 | Died, Bon Echo, Ontario, Canada |
| Date | Event |
|---|
| 1864, Feb. 20 | Born, Philadelphia, Pa. |
| 1891 | Married Horace Traubel |
| 1898-1919 | Associate editor, Conservator |
| 1908 | Published Toward Humanity. Portland, Me: T.B. Mosher |
| 1912 | Published A Little Book of Nature Thoughts. London: Siegle, Hill & Co. |
| 1919 | Published with Léon Bazalgette, Flora MacDonald, J. W. Wallace, Shigataka Naganuma, Seigo Shirotori, and Masao Fukuda The Japanese Poet, Vol. 4, No. 9 (In Memoriam of Horace Traubel). Tokyo: Shinchosa |
| 1954, May 11 | Died, Philadelphia, Pa. |
