1928
Mr. Sampson is born in Edmore, North Dakota to Silas Abner and Mabel Elizabeth Sampson.
1950
Mr. Sampson receives a Bachelor of Arts from Concordia College.
1952
Mr. Sampson receives a Master of Fine Arts from the University of Iowa.
1954
Mr. Sampson joins the U.S. Army.
1954
Mr. Sampson has a one man show at the Walker Art Center in Minneapolis, Minnesota.
1956
Mr. Sampson studies postgraduate courses at the University of Iowa.
1959
Mr. Sampson becomes a Fulbright Fellow.
1961
Mr. Sampson becomes an acting assistant professor of fine arts at the University of Colorado.
1968
Mr. Sampson is promoted to associate professor of fine arts at the University of Colorado.
1972
Mr. Sampson is promoted to full professor of fine arts at the University of Colorado.
1975
Mr. Sampson has a one man show at the Denver Art Museum.
1990
Mr. Sampson earns the title of Professor Emeritus of Fine Arts from the University of Colorado.
2003
Mr. Sampson exhibits his work at the Arvada Center of the Arts.
2018
Mr. Sampson exhibits his work at the Boulder Museum of Contemporary Art.