Historedia
Person

John Lawrence Grattan

Events
1
Episodes
1
Years
1854

Every event in Historedia whose sources name John Lawrence Grattan, with the role they cite and all of that event’s episodes. This is not a biography, and mentions are grouped by name, so two people with the same name can share this page.

Events and episodes

  1. Grattan massacre near Fort Laramie

    1854

    Role: Second Lieutenant, U.S. 6th Infantry

    1. August 19, 1854 · Nebraska TerritoryAnnihilation of Grattan's Command

      Grattan's detachment was killed after a soldier shot Chief Conquering Bear, violating treaty protocols for resolving the cow dispute.

Sources

  1. Grattan massacre Wikipedia, revision of 2026-10-03
  2. John Lawrence Grattan Wikipedia, revision of 2026-09-02