Every person who has served on active duty with the armed forces of the United States on or after January 1, 1961 and prior to such time as Congress declares such persons ineligible for the Viet Nam Service Medal is entitled to receive compensation of $100 for such service if (a) he had been a resident of the State of Illinois for at least 12 months immediately preceding the time he entered such service, (b) he is still in active service, is honorably separated or discharged from such service, has been furloughed to a reserve or has been retired, and (c) he has received the Viet Nam Service Medal. Service in the merchant marine is not service in the armed forces for purposes of this Act.
     No payment may be made under this Section to any person who, though in such service, did civilian work at civilian pay or who has received from another State a bonus or compensation of like nature so provided by this Act.