Atlas of Battles

battle, notable, nineteenth century

Grattan massacre

Grattan massacre was a battle fought on 19 August 1854 in what is now Wyoming, United States. It was part of the Sioux Wars, which ran from 1854 to 1891. The recorded result: Lakota victory; Start of the First Sioux War. Recorded strength: ~ 500 against 31.

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Fought19 August 1854
WhereWyoming, United States42.132N, 104.406W
OutcomeLakota victory; Start of the First Sioux War
BelligerentsLakota SiouxagainstUnited States
Casualties and losses2 killedand31 killed
Part ofSioux Wars1854 to 1891

Where it sits in the Sioux Wars

Grattan massacre, 1854Battle of Ash Hollow, 1855Battle of Big Mound, 1863Battle of Dead Buffalo Lake, 1863Battle of Stony Lake, 1863Battle of Whitestone Hill, 1863Battle of Killdeer Mountain, 1864Battle of the Badlands, 1864Powder River Expedition, 1865Yellowstone Expedition of 1873, 187318541873Grattan massacre, 1854
10 placed engagements of the Sioux Wars in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date19 August 1854
PlaceWyoming, United States
42.132N, 104.406W
KindBattle, nineteenth century
Strength~ 50031
Casualties and losses2 killed31 killed
Commanders
  • Conquering Bear
  • Little Thunder
  • John Lawrence Grattan
Grattan massacreGrattan massacreBattle of Warbonnet CreekBattle of Mud SpringsBattle of Platte BridgeBattle of Ash HollowBattle of JulesburgBattle of Warbonnet CreekBattle of Mud SpringsBattle of Ash HollowCheyenneLaramieScottsbluffSidneyDouglasChadron100 km42.132N, 104.406W
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

In the same war

Elsewhere in 1854

Grattan massacre is one of 3,694 engagements of the 19th century in the atlas and one of 1,264 in present-day United States (9 in Wyoming).

Sources

Identity, coordinates, dates and the war from Wikidata Q1543656, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Grattan massacre, revision 1381854672, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.