On June 30, the following notable historical events related to Missouri have been recorded:

• 1804: The Lewis and Clark Expedition continued its journey along the Missouri River, with the group camping near present-day St. Joseph, Missouri, on or around June 30. This was part of their exploration of the Louisiana Purchase, significantly impacting Missouri’s role in westward expansion.
• 1862: During the Civil War, Missouri remained a hotspot for guerrilla activity. While no specific battle is recorded for June 30, this date aligns with ongoing skirmishes between Union forces and Confederate bushwhackers, particularly in central and western Missouri, as the state grappled with divided loyalties.
• 1934: The Kansas City Stockyards, a major economic driver for Missouri, saw significant activity around June 30, with record livestock shipments. This underscored Kansas City’s importance as a national hub for agriculture and trade during the Great Depression.