He graduated from Washington University in St. Louis in 1948 with a bachelor's degree in chemistry, after which he settled in Prince George's County with an interest in metallurgy;[3] Gullett held 21 US patents in the area.
[3] An interest in zoning issues that affected his home in College Park, Maryland influenced Gullett's entry into community affairs.
[citation needed] On leaving office, Gullett was asked to serve in a USAID mission and did so, working as the assistant director for Management in Haiti from 1982 to 1985.
[4][3] Gullett's son, William, was shot and killed on February 16, 1969, while on duty as a young Prince George's County police officer.
He served as director of licenses and permits in the administration of the second Republican Prince George's County Executive, Lawrence Hogan, in 1979.