William Morris Davis

William Morris Davis was married thrice, and unfortunately, lost his wife twice. He married Ellen B. Warner of Springfield, Massachusetts in 1879. After she expired, he married Mary M. Wyman of Cambridge, Massachusetts in 1914. When his second wife also died, he married Lucy L. Tennant of Milton, Massachusetts in 1928, who outlived him.

He died on 5 February 1934, in Pasadena, California, a few days before his 84th birthday.

His Cambridge home is a National Historic Landmark. The valley of Davisdalen in Nathorst Land at Spitsbergen, Svalbard is named after him.

William Morris Davis was born on 12 February 1850, in Philadelphia, Pennsylvania. His father, Edward M. Davis, was a businessman and his mother’s name was Maria Mott Davis. His maternal grandmother, Lucretia Mott, was a women’s rights and anti-slavery activist.

Both his parents were members of the Society of Friends. Eventually, his father was disqualified from the society for joining the Union Army during the War Between the States. Before long, his mother also gave up her membership.

As a boy, he was not much interested in sports, rather he was more absorbed in his studies. For many years he was home schooled by his mother; this laid the foundation of a flawless vocabulary and his firmness for accurate writings by his students.

He was a bright student and at the age of nineteen, he graduated with a Bachelor of Science degree from Harvard University. He received a Master of Engineering degree a year later in 1870.

Right after receiving his Masters’ degree, William Morris Davis joined as a meteorologist at the Córdoba Observatory in Argentina. After three years, he returned to the United States and served as a field assistant to Raphael Pumpelly, on the Northern Pacific survey.

In 1877, he joined Nathaniel S. Shaler, the professor of Geology at Harvard College, as his assistant. It was under him, that he developed an everlasting love for geography.

Since promotion was slow in those times, he was listed as an instructor in Geology at Harvard from 1879 to 1885. In 1885, he was appointed Assistant Professor of Physical Geography.

In 1889, he published the ‘The Rivers and Valleys of Pennsylvania’, which became his most important work in physical geography. In this publication, he introduced the concept of the ‘Davisian system’ of landscape analysis.

The analysis denotes that the physical features of the land are the result of long term continual erosion. This sequential change through time is what makes ‘a cycle of erosion’, a concept which according to him is extremely crucial in understanding current landscape and geological history.

In ‘The Rivers and Valleys of Pennsylvania’ (1889) and its sequel, ‘The Rivers and Valleys of Northern New Jersey, With Notes on the Classification of Rivers in General’ (1890), he laid the foundation of his method of landscape analysis (the Davisian System) and defined ‘the cycle of erosion’.

His other most important work was his study of the Triassic basins of New England and New Jersey, supported by the U.S. Geological Survey. The first report was published in 1882 while the final and all-encompassing one, ‘The Triassic Formation of Connecticut’ was published in 1898.