Really the only way you are going to find out is to order his obit from Vigo Co. I will tell you I found another item online that states Roy V. Shockley of Terra Haute is Roy Van Shockley. Get the obit from Terra Haute and see if any military service is mentioned.
This appears to be Roy Van Shockley’s mother. See if you can contact the family members that posted it.
"Gladys Shockley22 Apr 1915-20 Oct 1996”
“You left so suddenly, just as you would have wanted. You never wanted to be a burden on anyone and you did not. When you lost your husband: Clifford (Cliff) G Shockley, your oldest son: Roy Van (Roy) Shockley and the son who had become the joy of your life: Lemuel Jackson (Jack) Shockley, you also lost your will to live. It was more than a wife and mother could bear when you lost your husband and two of your children in the short span of less than 2 years Although you are no longer with us, you are in our thoughts, the two daughters and 2 sons you left behind. We think of you often as well as Jack, Daddy and Van. Although we miss you terribly,we know you are in a better place and we will see you again someday."
The Social Security Death index has Gladys M. Shockley died 1994 this memorial was posted 1996. Husband Clifford G. and son Jack L. Shockley are also listed in index and all living in Cullman, Cullman Alabama. Roy V. Shockley died Terra Haute also died in 1992 same as Clifford, Jack died in 1993.