August 26, 1804 produced four overlapping accounts that, taken together, reveal how differently the expedition’s narrators handled the same twenty-four hours. The day combined an administrative milestone — the formal elevation of Patrick Gass to sergeant — with the return of the reconnaissance party from the so-called Spirit Mound and a slow afternoon’s progress past the abandoned village of the Maha chief Petite Arc. Each journalist emphasized a different layer of the day, and the contrasts illuminate the working habits of the corps’ record-keepers.
The Spirit Mound Reconnaissance, Reported Secondhand
Neither Gass nor Whitehouse had walked to the mound; both were with the boat party and recorded the captains’ return as hearsay. Their accounts are strikingly parallel. Gass writes that about 10 o’clock Captain Lewis and Captain Clarke with the party accompanying them came to camp; but had not been able to discover any of those small people,
noting the hill stands in a handsome prairie
with buffalo near it. Whitehouse, writing at roughly the same hour, offers a fuller sensory picture:
ab! 9 oClock the party returned to the Boat much fatigued they informd us that their was nothing but Birds to be Seen & that it is about nine miles from the Missouri & a handsom round hill in a [im]mence large prarie. they Saw a Great many Buffelow from the hill. they were all most famished for water &c.
Whitehouse adds the detail of thirst and exhaustion that Gass omits, and he supplies the distance — nine miles — that Gass leaves vague. The shared phrase handsome
(Gass) and handsom round hill
(Whitehouse) suggests both men absorbed a common verbal report from the returning party rather than independently composing descriptions. Notably, neither Lewis nor Clark devotes a line of the surviving August 26 entries to describing the mound itself; their attention has shifted to administrative business and downstream geography.
The Promotion of Patrick Gass
The most consequential document of the day is Lewis’s formal order book entry appointing Gass to fill the vacancy left by Sergeant Charles Floyd’s death tw006 days earlier. The language is careful and public:
The commanding officers have thought it proper to appoint Patric Gass, a Sergeant in the corps of volunteers for North Western Discovery, he is therefore to be obeyed and respected accordingly.
Lewis emphasizes that the appointment was confirmed by the wish expresssed by a large majority of his comrades
— a rare glimpse of something like an election within the corps. Clark’s field journal compresses the same event into a single phrase tucked between geography and botany: we apt. Pat Gass Sergeant Vice Floyd Dicesed.
The disparity in register is telling. Lewis writes for the record, framing the promotion in the formal vocabulary of the regular army; Clark, true to form, treats it as one item among many in a working log.
Most striking of all is Gass’s own silence. The newly minted sergeant does not mention his promotion. His entry moves directly from the returning reconnaissance party to the resumption of the voyage and the evening’s camp opposite a creek called Pettit-Ark, or Little-bow.
Whether modesty, discretion, or the later editorial hand of his publisher David McKeehan accounts for the omission, Gass’s reticence stands in pointed contrast to the formality Lewis lavished on the appointment.
Petite Arc: Geography as Ethnography
All four narrators name the creek opposite that night’s camp, but only Clark explains it. Gass and Whitehouse give the name and a passing note — Whitehouse adding that their was formerly an Indian village
— while Clark supplies a full ethnographic gloss in two parallel drafts. He recounts how a Maha sub-chief, displeased with the Conduct of Black bird the main Chief,
separated with two hundred men and built a town of about 100 huts & 200 men
at the foot of the hill, and how after Petite Arc’s death the splinter group rejoined the main nation. This is the kind of intelligence-gathering that distinguishes Clark’s journal throughout the early Missouri stretch: he treats every named landmark as an opportunity to record Indigenous political history obtained, presumably, from the engagés or from George Drouillard.
The day’s botanical notes show the same hierarchy. Clark catalogs three Kinds of Plumbs, one yellow round, & one ovel, & the Common wild Plumb,
while Whitehouse records only a large plumb orched in a prarie.
Across August 26, a consistent pattern emerges: Lewis writes for posterity, Clark for the record, Whitehouse for sensory texture, and Gass — on the day of his own promotion — for brevity.
