Malarkey was born on 30 July 1921 in Astoria, Oregon. He was a freshman at the University of Oregon when he was drafted into the US army in 1942. He volunteered to become a paratrooper.
He returned to the University of Oregon after the war, receiving a bachelors degree in business in 1948. While at the school he met Irene Moore. The two married in 1948 and had four children: Michael Malarkey, Marianne McNally, Sharon Hill and Martha Serean.
Malarkey met the historian Stephen Ambrose in 1987. In 1989 he traveled with other members of Easy Company to Europe to provide oral histories of their war experiences. Those recollections became the basis for Band of Brothers and an earlier book with the same name written by Ambrose.
In the series, executive produced by Steven Spielberg and Tom Hanks, he was played by Scott Grimes.
Malarkey detailed his experiences in a 2008 autobiography written with Bob Welch, Easy Company Soldier. He was frequently asked to speak about his experiences in the second world war. He also lectured at the United States military academy at West Point and made trips to Kuwait and Germany to meet wounded soldiers from the Iraq war.
He remained close to the other surviving members of Easy Company and attended his final reunion in Portland, Oregon, in August.
You could look back and with great pride realize that you had done a very significant thing and acted responsibly in what amounted to saving the world, he told Oregon Public Broadcasting in 2012.
Malarkey is survived by his daughters and his sister, Molly Rumpunkis.