Fort Insley (1861-18??) - The largest of three blockhouses erected at Fort Scott in the spring of 1861, under the supervision of Captain William Holcke, it was located on the point of the mound, where the Plaza school building was afterward erected. It was garrisoned by a detachment of the Sixth Kansas and was used for storing ammunition.
http://www.legendsofamerica.com/ks-forts3.html

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Fort Hovey (Fort Curtis)
From Wikipedia, the free encyclopedia
Coordinates: 37°35′25″N 90°37′35″

Fort Hovey was a small Civil War era earth-and-wood fort built on a hill overlooking the junction of the road running south out of Ironton, Missouri and the road running east to Fredericktown, Missouri.
http://en.wikipedia.org/wiki/Fort_Hovey_(Fort_Curtis)

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Fort McKean is a fort located inside Kansas along the Kansas-Missouri border. On November 14, 1862, Company C of the 3rd Wisconsin Cavalry, led by Lieut. James B. Pond, established a camp at Morris Mills on Drywood Creek. It was fifteen miles southeast of Fort Scott. Sometime later this camp was given the name of Fort McKean. The post was probably on the Fort Scott-Fort Gibson Military Road, and many, including Pond, thought the post was inside Missouri. Throughout its history, Fort McKean was a small post, ranging in strength from 20 to 60 men. It is unknown what buildings or defenses were erected there.[1]
http://en.wikipedia.org/wiki/Fort_McKean