Silver Star Medal

Maybe having the general order number would help when contacting the archives? Looks like it can be found here;

Valor awards for Buster Dishman

The Army has some pretty detailed books on WWII, all of which can be found online - might want to figure out the operation and then you can read all about the battle your old man fought in.

U.S. Army in World War II Series - U.S. Army Center of Military History 

So sorry to hear the personnel records were destroyed in the fire. Here at the Textual Reference Archives II Branch at the National Archives at College Park, we do have custody of WWII general orders for most units (although there are sometimes gaps), so if you have the general order information (i.e. unit, general order number, year), we can search for the general order.

We also have custody of WWII unit operational records, so if you can provide us with which specific unit he served in as well as dates of interest, we can let you know what kinds of unit records are available. Keep in mind, the unit records document larger unit activities and typically do not contain any information about specific individuals.

You can e-mail us at archives2reference@nara.gov.