| 1872, October 1 |
Born at Chicago, Illinois |
| 1893(?)-1903 |
Student, The University of Chicago
(A.B. 1897, Ph.D. 1903) |
| 1900 |
Married Harriet Towle Bradley 1900-1949 Geologist, U.S. Geological Survey |
| 1902-1913 |
Instructor to Associate Professor of Geology, The University of Chicago |
| 1913-1920 |
Professor of Physiography, Harvard University |
| 1920-1946 |
Professor of Physical & Regional Geography, Director of the Graduate School of Geography, & President, Clark University |
| 1920 |
Publication of New Geography (Boston: Ginn & Company) |
| 1925 |
Founded Economic Geography |
| 1929-1933 |
President, National Parks Association |
| 1932 |
Publication of Physiography and Quaternary Geology of the San Juan Mountains, Colorado
(with Kirtley F. Mather)
(Washington: U.S. Geological Survey) |
| 1932-1935 |
President, Pan American Institute of Geography & History |
| 1933-1934 |
President, Association of American Geographers |
| 1940 |
Publication of The Physiographic Provinces of North America (Boston: Ginn & Company) |
| 1945 |
Publication of The Rocky Mountains (New York: Vanguard Press) |
| 1946 |
LL.D., Clark University |
| 1946-1949 |
President Emeritus, Clark University |
| 1949, July 24 |
Died at Annisquam, Massachusetts. Buried at Mt. Auburn Cemetery, Cambridge, Massachusetts |
