The entries of August 22, 1804 offer an unusually rich cross-section of expedition record-keeping. All four narrators — Clark, Gass, Ordway, and Whitehouse — describe the same stretch of mineralized bluffs along the Missouri above the mouth of the Vermillion. Yet the four accounts diverge sharply in length, technical vocabulary, and the events each writer deems worth preserving. Read together, they expose the social architecture of the journals: who observed what, who copied whom, and which incidents traveled up or down the chain of command.
Four Registers of the Same Bluff
The mineral outcrop is the day’s shared anchor. Gass, the carpenter and soon-to-be sergeant, offers the briefest notice, cataloging the substances in a single clause:
passed bluffs on the south side, where there is copperas, allum and ore of some kind; also passed a creek.
Whitehouse is similarly compressed, generalizing the deposits as "Some kinds of Minral Substance." Ordway, by contrast, lingers. He notes the "Sulphear Smell," the "appearence of brass," the red cedar bluff, and an "Alum Stone clift about 50 feet high" topped with bird nests. The parallels between Ordway and Whitehouse — the southern wind, the two men rejoining with two deer, the alum cliff, the prairie camp, the elk sign — are close enough in sequence and phrasing to suggest Whitehouse worked from Ordway’s notes or that both drew on a shared sergeant’s log, as scholars have long suspected for stretches of the 1804 journals.
Clark’s Chemistry Lesson
Clark’s entry dwarfs the others and supplies details no other journalist records. Where Ordway lists minerals by appearance, Clark catalogs them with a more deliberate vocabulary — "Pyrites alum, Copperass & a Kind Markesites" — and adds a pliable waxy substance he speculates is "arsenic or Cabalt." More striking, only Clark preserves the day’s most dramatic incident:
Capt lewis was near being Poisened by the Smell in pounding this Substance I belv to be arsenic or Cabalt.
In his second draft of the same day, Clark elaborates that Lewis was "proveing the quality of those minerals" when he was "near poisoning himself by the fumes & tast of the Cabalt which had the appearance of Soft Isonglass," and that Lewis subsequently "took a Dost of Salts to work off the effects of the Arsenic." That Ordway, Whitehouse, and Gass all omit this episode is telling. Either the captains kept the near-accident among themselves, or the enlisted journalists — writing at a different pace and from a different vantage — simply did not witness Lewis’s experiment closely enough to report it. The naming of the small creek "Roloje" is also unique to Clark and Ordway; Clark’s second draft adds the curious confession that the name was one he "learned last night in my Sleep."
The Election of Sergeant Gass
The day’s other major event — the election to fill Sergeant Floyd’s vacancy — appears only in Clark. He records that the men were ordered to vote, that the three highest were "Gass Bratton & Gibson," and that Gass received 19 votes. Gass himself, despite being the day’s victor, says nothing of the election in his own published journal entry. The silence is consistent with Gass’s generally laconic register, but it is also a reminder that his published 1807 narrative was edited by David McKeehan and may have suppressed details Gass found immodest or that McKeehan considered routine. Ordway and Whitehouse, both of whom would have cast votes, also omit the ballot entirely — a striking gap, given that the election shaped the expedition’s command structure for the remainder of the journey.
The August 22 entries thus illustrate a recurring pattern in the corpus: Clark functions as the expedition’s institutional memory, recording chemistry, governance, and toponymy; Ordway provides the most reliable enlisted-rank narrative and seems to be the source for Whitehouse’s parallel passages; Gass writes spare topographic notes; and Whitehouse, working in Ordway’s wake, condenses. A reader consulting only Gass or Whitehouse would never know that the captain of the expedition nearly poisoned himself with cobalt, or that the man writing those very lines had just been elected sergeant by his peers.
This analysis was AI-assisted and reviewed by a human editor prior to publication.
