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Fort Leavenworth in Leavenworth County, Kansas — The American Midwest (Upper Plains)
 

Fort Leavenworth: "Queen of the Frontier Posts"

Tour Stop #1

 
 
Fort Leavenworth: "Queen of the Frontier Posts" Marker image. Click for full size.
Photographed by William Fischer, Jr., February 9, 2012
1. Fort Leavenworth: "Queen of the Frontier Posts" Marker
Inscription.
Colonel Henry Leavenworth, a lawyer by education but a soldier by choice, arrived here on May 8, 1827, with 188 officers and men of the 3rd Infantry to establish an outpost on the Missouri River.

Because of the toll taken by malaria on the 3rd Infantry, the regiment had to be replaced with the 6th Infantry in 1829. The 6th Infantry provided the first military escort to the Annual Merchants Caravan on the Santa Fe Trail. In 1834 the first mounted troops arrived here. The U.S. Regiment of Dragoons conducted expeditions each year through the Great Plains in an effort to keep peace between the Indians and ensure the safety of the wagon trains heading West.

During the Mexican War, 1846-1848, Fort Leavenworth was a major base of operations against Mexico. It was here that the Army of the West was assembled under General Stephen Watts Kearney.

Fort Leavenworth became not just a Headquarters, but also the major supply depot and center for the military overland freight business supplying most of the forts throughout the West.

The Kansas-Nebraska Act of 1854 changed the earlier treaties with
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the Indians by opening this area to white settlement. Because of this, Fort Leavenworth's peacekeeping mission was greatly complicated. Now the Army had to protect the new settlers from the Indians while keeping peace among the settlers. During the era of Bleeding Kansas, the first blood of the Civil War was spilled in Kansas Territory over the slavery versus free state issue.

During the Civil War, Fort Leavenworth was a receiving and training center for recruits. The war came closer in October 1864, when Confederate Forces under General Sterling Price moved toward Fort Leavenworth. Some of the Federal Forces who defeated him at the Battle of Westport, outside Kansas City, came from Fort Leavenworth.

In 1864, because of continuing Indian unrest, authority was granted for recruiting Confederate prisoners of war to serve with the Army. They were known as "The Galvanized Yankees". Some 5,000 volunteered, under the condition they were used only against the Indians and not their former comrades. In 1865, Fort Leavenworth served as a staging area for these soldiers.
 
Erected by Fort Leavenworth Historical
Fort Leavenworth: "Queen of the Frontier Posts" Marker image. Click for full size.
Photographed by William Fischer, Jr., February 9, 2012
2. Fort Leavenworth: "Queen of the Frontier Posts" Marker
At the time of the photos, push a button on the marker pedestal and hear the story of Fort Leavenworth. Frontier Army Museum in background.
Society. (Marker Number 1.)
 
Topics. This historical marker is listed in these topic lists: Forts and CastlesPatriots & Patriotism. A significant historical date for this entry is May 8, 1827.
 
Location. 39° 20.936′ N, 94° 54.878′ W. Marker is in Fort Leavenworth, Kansas, in Leavenworth County. It is at the intersection of Reynolds Avenue and McDowell Avenue, on the right when traveling west on Reynolds Avenue. Marker is on the Frontier Army Museum grounds, on Fort Leavenworth. Touch for map. Marker is at or near this postal address: 100 Reynolds Avenue, Fort Leavenworth KS 66027, United States of America. Touch for directions.

Regionally, this marker is in Eastern Kansas and specifically in Greater Kansas City. It is also in the American Midwest, in the Lewis & Clark Corridor, in the Corn Belt, on the prairies, and on the Southern Plains. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the Louisiana Purchase.

Other nearby markers. At least 8 other markers are within walking distance of this marker: "Horsemanship Training" (here,
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next to this marker); D-Day Commemorative Tree (within shouting distance of this marker); Fort Leavenworth (within shouting distance of this marker); Fort Sully (within shouting distance of this marker); 4.2-in. (30-lb.) Parrott Rifle (within shouting distance of this marker); Major General James Franklin Bell (approx. 0.2 miles away); Sherman Hall (approx. 0.2 miles away); French Aid During American Revolution (approx. 0.2 miles away). Touch for a list and map of all markers in Fort Leavenworth.
 
More about this marker. This is an active US Army post. Proper identification is required for entry.
 
 
Credits. This page was last revised on November 5, 2025. It was originally submitted on November 5, 2025, by William Fischer, Jr. of Reynoldsburg, Ohio. This page has been viewed 48 times since then and 23 times this year. Photos:   1, 2. submitted on November 5, 2025, by William Fischer, Jr. of Reynoldsburg, Ohio.
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Aug. 17, 2026