The services which Cowperwood performed during the ensuing year and a half for Stener, Strobik, Butler, State Treasurer Van Nostrand, State Senator Relihan, representative of "the interests," so-called, at Harrisburg, and various banks which were friendly to these gentlemen, were numerous and confidential.

For Stener, Strobik, Wycroft, Harmon and himself he executed the North Pennsylvania deal, by which he became a holder of a fifth of the controlling stock.

Together he and Stener joined to purchase the Seventeenth and Nineteenth Street line and in the concurrent gambling in stocks.
By the summer of 1871, when Cowperwood was nearly thirty-four years of age, he had a banking business estimated at nearly two million dollars, personal holdings aggregating nearly half a million, and prospects which other things being equal looked to wealth which might rival that of any American.

The city, through its treasurer--still Mr.Stener--was a depositor with him to the extent of nearly five hundred thousand dollars.

The State, through its State treasurer, Van Nostrand, carried two hundred thousand dollars on his books.