Allan Pinkerton,
The Expressman and the Detective
“ The hack driver had not been paid, and in all probability would return for Maroney. If he watched the house, he might be discovered from behind the blinds; so he determined to keep his eye on the hack driver. The hackman drove leisurely down to a saloon, fastened his horses, and went in. Roch opened conversation with his driver, and found that he was a slave, but that he had got permission from his master to hire himself out, for which privilege he paid one hundred dollars a month. ”
