The famous part of June 13, 1805 — Lewis ahead of the main party, seeing the Great Falls of the Missouri for the first time, reaching for “the pencil of Salvator Rosa or the pen of Thompson” — is the version that has entered American folklore. The cross-narrator reading shows the rest of the day: a working journal, written by men who had no idea what their captain had just seen.
The boat-party day
Ordway, Gass, and Whitehouse all wrote nearly identical accounts of June 13 from the perspective of the canoes still hauling upstream. They name a new tributary on the south bank “Snowey River” (Ordway and Whitehouse) or “Snow creek” (Gass) — modern Shonkin Creek — describe the cottonwood bottoms, and note 14 miles made for the day. Whitehouse adds a detail the others omit: he was not feeling well. “I was taken verry Sick to day, & a violent head ack.” A small line in a 100-word entry, easily missed.
None of the three sergeants mentions the falls. None of them knew. Lewis, with four men, was 18 miles ahead.
The Whitehouse–Ordway problem on this date
Reading their two June 13 entries side by side reveals an instance of the well-documented Whitehouse-from-Ordway copying pattern (Moulton, vol. 11). Both name the new river, both note 14 miles, both list goose berries and yellow currants, both end with the camp on the south side. But Whitehouse uniquely adds the personal note about his headache and a sensory detail: “I went over the River to See it.” Whitehouse, even when copying, was sometimes a witness in his own right.
What this day’s split tells us
By June 13, the captains had begun the practice of dividing the party for scouting — Lewis with a small advance group, Clark with the boats. This pattern, established on the Missouri, prefigures the more dramatic split at Lemhi Pass two months later (see August 13, 1805). On June 13 it was logistical: the captains needed someone ahead to find the right channel. The cross-narrator record shows that the famous moment of discovery and the slower work of moving the expedition forward are always two halves of the same day.
One detail is worth flagging for editor review: our database does not currently contain Lewis’s entry for June 13, 1805 — only a curated editorial summary. The famous “Salvator Rosa” passage is widely quoted from Moulton’s edition, which is copyrighted; future re-import from a higher-coverage public-domain source could complete this date.
