Here’s an interesting item from the 1891 The New York Times about a suit over unpaid gas bills.
Only seven years after drilling for natural gas in his own yard at Solitude, George Westinghouse’s Philadelphia Company was fueling Carnegie’s steel mills. We’re not sure how this suit was settled, but the enmity culminated the following year.
Although Westinghouse repeatedly to advise Carnegie against allowing Henry Clay Frick to foment the Homestead steel strike, the Pinkertons were hired, and the rest is history.