“The primary business of the Robidoux clan was to trade with the Indians. . . . [T]he Robidoux eastbound caravans were often observed by emigrants: Howell was told by Robidoux that it was 602 miles from [his trading post near Scott’s Bluff] to St. Joe. But the passage over the California Road of at least 75,000 people in [1849-50] certainly was not to be ignored by a shrewd businessman; so Robidoux made a pig pitch also for the emigrant trade and, being the only entrepreneur around for 300 miles, he prospered. . . .
[Joseph Robidoux] is incontestably the founder of St. Joe.”