Lewis headed for Princeton, where, he said, he found “empty heads and full purses.” He succeeded in fleecing many of the students of all the money they had or could obtain.
His next exploits were in Philadelphia, where he was the leader of a band which attempted to decoy Stephen Girard out of the city into the country, to keep him in confinement until forced to purchase his freedom. They also planned to dig a tunnel from the Dock Street sewer to Girard’s banking house, where they intended to reach the bank vaults from below. The dangerous illness of Lewis’ daughter caused a delay in these plans, his gang drifted apart, and the scheme was abandoned.
He then drove a team in the United States Army, where he robbed officers and men. When he received his pay for his services and for his employer’s teams and wagons, he stole the entire proceeds and left for Western Pennsylvania, where he was most active and successful in his nefarious pursuit.
His wife died about this time and his grief was so genuine that he almost changed his mode of life, but soon fell in with another gang and for some time devoted his attention to making and circulating spurious money. He was caught passing bad money and arrested at Bedford and sentenced to the penitentiary, from which he was pardoned by Governor Findlay.
Lewis and his band robbed a Mr. McClelland, who was riding from Pittsburgh to Bedford. Lewis saved McClelland’s life when Connelly insisted on shooting him, saying “Dead men tell no tales.” Lewis was again caught and confined in the Bedford jail. He not only escaped, but he set free all the convicts who entered in the plan with him, leaving behind “an ordinary thief who had robbed a poor widow. Such a thief should remain in jail and pay the price,” wrote Lewis in his confession.
Lewis and Connelly made a trip through York and Cumberland Counties robbing wealthy German farmers. A well-laid plot to rob a wealthy Mr. Bashore was frustrated through the presence of mind and bravery of his wife, who blew a horn to alarm the neighborhood, as Lewis confessed, “displaying as much courage as any man and more resolution than any woman I had met with.”
On several occasions he was known to have risked capture, and even his life, just to spend a few hours with his mother, whom he dearly loved.
Lewis learned that a wagon load of merchandise belonging to Hamilton and Page, of Bellefonte, was expected to pass through the Seven Mountains. He and his gang quickly planned and successfully executed this robbery, and immediately thereafter made a rich haul from the store of General James Potter, in Penn’s Valley near the Old Fort.
Lewis was a shrewd mountaineer and smart as a steel trap, but like all such criminals of his daring was sure to meet his fate. Even though frequently arrested and confined in jail, none was strong enough to hold him. He never served a sentence in a single institution.
After the robbery of General Potter’s store, Lewis and Connelly started for Sinnemahoning, meeting at the house of Samuel Smith, where they participated in shooting at a mark, and mingled in the crowd. Lewis and Connelly were recognized and their surrender demanded as rewards were everywhere offered for their arrest. Connelly opened fire, killing one of the captors.