Mary Mayo Hall is the oldest residence hall on the campus of Michigan State University.
It is named after Mary Mayo, a pioneer woman born around the turn of the century in Calhoun County, MI. She was an advocate for women's rights and education.
After being closed for the past school year for renovations, Mayo has emerged completely remodeled and is once again housing residents. It is also rumored that the building is haunted by the ghost of Mary Mayo.