On the Wrong Track — Steve Hockensmith

Gustav Old Red Amlingmeyer is an old-fashioned kind of guy: He prefers a long trail ride even when a train ticket can get him where hes going in one-tenth the time. His brother Big Red, on the other hand, wouldnt mind climbing down from his horse and onto a train once in a while if itll give his saddle-sore rear end a rest. So when its Old Red who insists they sign on to guard the Pacific Express, despite a generations-old Amlingmeyer family distrust of the farm-stealin, cattle-killin, money-grubbin railroads, Big Red is flummoxed. But as usual, hell follow his ornery brother just about anywhere.