Mark, there was no control stand as such, just an assortment of levers, and the operator spent a lot of his time standing up. In the attached picture you can see the controls inside the wrecker on the far right side, but the location varied from wrecker to wrecker. The wrecker operator didn't have a very good view and often operated from hand signals passed to him by another carman. In either event, the signals originated with the wrecker foreman standing on the ground near the action.
The wrecker did have a fireman that fired the boiler on the wrecker. / Ron