Who was Seven-Up Pete? Peter McMahon was part of the first party to discover gold in Silver Bow Creek. The Anaconda Standard reported (October 21, 1906) that it was Seven-Up Pete who said the creek looked like a Silver Bow glinting in the sunlight, and gave the name that we continue to use to this day.
Pete was evidently a well-liked character around Butte. When people asked how long he’d been in Butte, he would say, “Do you see that butte over there? It was a hole in the ground when I came here.”
McMahon got his nickname playing the card game of seven-up back in Kansas, where he allegedly never lost, except once, and that under threat of a club. He was born in County Clare, Ireland, June 29, 1833, and came to America at age 16 in the wake of the Irish potato famine. He made his way from New York to New Orleans to St. Louis, with, he said, 15 cents in his pocket, and he cut wood for his breakfast. He worked as a riverman, railroad worker, and butcher, and as a scout in New Mexico for the army in the war against the Comanches. He mined at Pike’s Peak, Colorado, before heading to Bannack and Virginia City in 1863. When he and the Parker party (G.O. Humphreys, William Allison, Frank Ruff, Bud Parker, Peter Slater, and perhaps others) came to what is now Butte, he said he found the first gold, running $1.65 to the pan—a goodly sum in those days, enough to buy several days' or a week's lodgings or three or four nice dinners in a restaurant. Pete also claimed to be the first to crush quartz for gold in Butte.
Pete McMahon was a miner who lived in the Centennial Hotel in 1885, and was presumably burned out when it went up in flames in 1888. He worked as a carman [miners out there – what was that?] at the Green Mountain Mine in 1891 but disappears from the directories beginning in 1893.
Does anyone know if the Seven-Up Pete mine near Lincoln, Montana, had anything to do with Pete McMahon?
Sources: Butte Bystander, April 15, 1897; History of Montana, 1739-1885, by Michael A. Leeson.