Distinguished Service Medal of the United States Marine Corps, upon his retirement from the Marine Corps Reserves for 37 years of distinguished service to his country, 1990.
From Muthra website... It should be noted that there is no such thing as an United States Marine Corps Distinguished Service Medal.
and his "American Spirit Honor Medal of the Marine Corps Recruit Department, 1952." is not a recognized medal that he could have ever worn on his uniform
You know that now.