Bobby Dunn sang for The Empires in the 50's. The Empires also recorded as the Prestos, The Thrill Tones and The Whirlers.
There's not much info on Bobby Dunn either. I do found he also has releases on the Ordell label and there seems to be a Bobby Dunn singing gospel. But I'm not sure if they're the same person.
I love the mans voice. On the flip side of this 45 (also a ballad) he really goes for it and pours out the emotions in his voice.