The Mark Hayes Collection was donated to LaBudde Special Collections in April 2019 by Hayes himself and consists of concert programs, handwritten notes, pedagogy books, published music scores of piano, organ, voice, choral, various chamber ensembles, and audio CDs related to Mark Hayes’s life and career. The collection is particularly strong in Christian music, including over 900 published scores of Hayes's original and arranged music. Additional audio/visual material related to this collection is housed in the Marr Sound Archives.