Peter Gratton was born in 1944 in Staten Island, New York, where his father was in the Coast Guard. However, he spent his childhood in Minnesota. From 1965 to 1969, Peter was a member of the US Marine Corps, serving a tour in Vietnam. As his military duty was ending, he learned that his parents were relocating to Las Vegas, Nevada, so he moved with them after leaving the marines.
In 1981, he graduated from the University of Nevada, Las Vegas and started a career at the university library. He eventually became the Administrative Assistant III for the Lied Library Building Department.