Lucius P. Buchanan House, also known as the Ralph L. Gray Alumni Center of Missouri Southern State University, is a historic home located at Joplin, Jasper County, Missouri.

It was built in 1926, and is a two-story, Spanish Revival style masonry dwelling covered in protective stucco.

It has a low-pitched tiled gable roof and features multiple arched entryways and window frames, recessed porch, decorative ornamentation, and wrought iron embellishments.

[2]: 5, 7 It was listed on the National Register of Historic Places in 2012.

This article about a property in Jasper County, Missouri on the National Register of Historic Places is a stub.