A month passed, and, hearing nothing, Proctor went to Canada again, and had another talk with his two confederates. They told him that they had gone to Susquehanna prepared to do the "job," but had learned, accidentally, that the money that month had been sent in gold, which would have been too heavy for them to carry away, and they had therefore decided to wait until a month later.
This was in May, and the following month the robbery occurred. Two weeks later Proctor went to Canada, and received eleven thousand dollars as his share of the plunder. Donahue and Collins explained to him that he did not receive more because they had been obliged to give a fourth share to another man who had worked with them. They cautioned him not to spend a dollar of the stolen money for months to come, as the detectives would be always on the lookout for suspicious circumstances. They also advised him to continue at his work, under no circumstances giving up his position within a year.
Proctor had strictly followed these suggestions, living and working as he had done before the robbery, and not spending any part of his portion. Having changed the money into large bills and sealed it up in a fruit-jar, so that the moisture could not injure it, he buried the jar head downward in his garden. There it remained untouched for months. But when the severe weather of the following winter set in, he dug up the jar, and taking the money to Buffalo, deposited it in three banks, in the name of his wife and his three children, with himself in each instance as trustee.
Although his trade became very irksome to him now that he had a small fortune in his possession, he prudently stuck to it until June, 1884. Then, a year having elapsed since the robbery, he decided that it would be safe for him to launch out into a pleasanter life. He accordingly went to Buffalo, where he entered into oil speculations with a friend who claimed to have "inside information" from the Standard Oil Company. Although fortunate at the start, the failure of Grant & Ward brought them heavy losses, and soon their profits and their original capital were swept away. Proctor assured Mr. Pinkerton that, at the time of their talk, he was ruined, and that he had intended, during this very visit to Susquehanna which ended in his arrest, making application for his old position as foreman of the boiler-shops.
Having heard Proctor's confession, Mr. Pinkerton took counsel with the officers of the express company. They, believing that Proctor had been only a tool in the hands of two smart professional criminals, agreed with the detective that the ends of justice demanded rather the apprehension of his confederates than his punishment alone. Proctor professed great penitence for his wrong-doing, and declared himself willing to do whatever was in his power to make amends.
The first step necessary to the capture of Donahue and Collins was to get them both into the United States at some point where they could be arrested at the same time. Donahue was still in Canada, where he could not be taken. Mr. Pinkerton arranged with Proctor to write to Donahue that he had discovered another safe which offered a tempting opportunity, hoping in this way to induce him to cross the line into the United States. To give color to the story it was necessary to accord Proctor apparent freedom of movement; but he pledged himself not to leave Susquehanna without Mr. Pinkerton's permission, and to keep the detective informed by letter and telegraph of all developments. At the same time detectives were sent to Canada to keep watch over Donahue.
Collins, in the meantime, had been located in Albany, but no attempt was made to arrest him until Donahue could be brought over the line. Should he cross without notifying Proctor, the men "shadowing" him were to cause his arrest. It was arranged with Proctor that, in case his letter failed of its purpose, he should go to Canada himself, persuade Donahue to send for Collins, and then induce the two to come back with him, when they would be arrested the moment they crossed the line.
On the 29th of November Robert Pinkerton received word by telegraph that Proctor had left Susquehanna suddenly in the night, telling the agent of the express company that he would return the next day. This looked very much as if Proctor had played him false, since it had been expressly stipulated that he should not go away without Mr. Pinkerton's permission. Days went by, and Proctor did not return. Then word came from one of the Pinkerton men at Fort Erie that Proctor had arrived at Donahue's hotel and had been joined there by Collins. This was a serious setback for the detectives. Not only were the three robbers safe from arrest where they were, but being fully aware of the danger threatening them, and being men of shrewdness, it was fair to presume that they would now move with great caution.
It soon became evident that Donahue and Collins were thoroughly alarmed by the news Proctor had brought them; for they at once took energetic steps to mislead any one who might be watching them. Having retired as usual one night, they arose later, and drove in a wagon to a station on the Grand Trunk Railroad, where they boarded a freight train for Toronto. After a brief stay in that city they went on to Montreal, where they tried hard to lose themselves, but were unsuccessful, and returned to Fort Erie.
Meanwhile Mr. Pinkerton discovered that the story told him by Proctor was entirely untrue. So far from having been an honest man before the robbery, it came to light that he was already at that time a hardened criminal, having committed burglaries both in the United States and Canada, and having been sentenced, under another name, to a term in the Massachusetts State prison. While in prison he had contrived to make keys that would unlock his own cell and those of three other prisoners, and the four had thus made their escape. One of them was the notorious Charles Bullard, who was at that time serving a term of twenty years for the robbery of the Boylston Bank of Boston. Proctor had also offered the privilege of escape to Scott and Dunlap, the Northampton Bank robbers, who were confined in the same prison, but they had distrusted his plan, and refused to avail themselves of it.