Pittsburg State: Then & Now
"Originally built in 1951 to house the College High Laboratory School, where PSU education students could get practical experience by interning and teaching classes grades 7 - 12. College High closed in 1971 and in 1973 with a monetary gift from Gladys A. Kelce, a 1916 graduate of the university, the building was renovated and renamed the Gladys A. Kelce Center for Business and Economic Development."
-- PSU Additional Building Histories. Pittsburg, KS Memories. https://pittsburgksmemories.com/Pittsburg_PSU/pittpsubuildings.html