1937
Harry V. Leland is born in Baltimore, Maryland as the eldest son of Rev. Harry Valentine Leland and Edna Lesher Leland.
1959
Harry V. Leland receives a Bachelor of Arts in Zoology from the University of California, Riverside.
1961
Harry V. Leland marries Gretchen Goldman. Together, they have two children, Katherine Grace and Edward Harry, born while Harry is in graduate school.
1964
Harry V. Leland receives a Master of Arts in Zoology from Southern Illinois University in Carbondale, Illinois.
1968
Harry V. Leland receives a Doctor of Philosophy in Natural Resources from the University of Michigan in Ann Arbor, Michigan.
1968
Dr. Leland becomes an Assistant Professor of Environmental Biology at the University of Illinois-Urbana. There, he initiates a decade-long research program on the Great Lakes.
1969
Dr. Leland initiates classroom and field instruction in Limnology at the University of Illinois.
1973
Dr. Leland joins the research committee of the Water Pollution Control Federation, and is a founding member of the Society of Environmental Toxicology and Chemistry.
1975
Dr. Leland is appointed Research Biologist in the Water Resources Division of the U.S. Geological Survey (USGS) in Menlo Park, California.
1976
Dr. Leland is assigned Research Advisor for Ecology for the Water Resources Division of the USGS.
1979
Dr. Leland receives a Special Achievement Award from the USGS.
1986
Dr. Leland serves for four years on the the Inter-Agency Toxicity Evaluation Committee for the San Francisco Bay and Delta Governments.
1989
Dr. Leland is assigned the duties of Program Director of the National Water-Quality Assessment Program (USGS).
1991
Dr. Leland receives his second Special Achievement Award from the USGS.
1992
Dr. Leland transfers to Boulder, Colorado and continues until retirement with his responsibilities as Program Director of the National Water-Quality Assessment Program (USGS).
2002
Dr. Leland receives an Outstanding Alumnus Award from the University of California, Riverside.
2004
Dr. Leland retires from the U.S. Geological Survey.
2005
Dr. Leland serves as a Volunteer Naturalist with the Open Space and Mountain Parks District in Boulder, Colorado, through 2009.