As noted at Harry Mendryk's Simon and Kirby blog, a signature appears in the final panel, although the name is hard to discern. A comparison with Robert Louis Golden’s signatures, such as from Captain Aero Comics #4 (April 1942) and Crime Fighting Detective #19 (June 1952), shows that they’re consistent with the signature in this story.
Art credits from Saltarella via the GCD Error Tracker.