September 1, 1910, Rockford, Illinois.
February 11, 2010.
Vashon Island Cemetery, Vashon Island, Washington.
Aaron was the son of John Aaron Markuson and Emma Nilsson, and husband of Margaret Gusarson (married 1940).
Aaron was converted and ordained at the First Covenant Church in Rockford, Illinois. He attended North Park Junior College (1935); North Park Theological Seminary, Chicago, Illinois (1937); and Tufts University and the Crane School of Religion, Medford, Massachusetts (1945). He received an honorary Doctor of Divinity from North Park Theological Seminary in 1999. He served at a number of locations, including:
He also served as executive secretary for the Department of Christian Education of the Evangelical Covenant Church (ECC) (1951–70); on the Executive Committee of the United States General Commission on Chaplains in the 1960s; and as first chaplain of the Covenant Shores Retirement Community, Mercer Island, Washington.
In the 1920’s Markuson, worked as an announcer for KFLV radio. Later, at ECC headquarters, he helped establish CHIC, a triennial national conference for ECC high school students.