[4] The museum includes a gift shop that sells educational toys, publications related to their exhibitions and arts and crafts from local artisans.

During his travels in the United States, Europe, Africa and South America, he acquired art and artifacts to exhibit in Oklahoma.

[9] In 2022, a large sculpture by Riley and fellow artist Glen Henry entitled "Trinity Eagle" was erected in front of the museum building.

[14] In August 2015, SSM Health St. Anthony Hospital - Shawnee performed CT scans on the two Egyptian mummies in the museum's collection.

The scans showed that Tutu's organs had been individually mummified and placed back inside her stomach and chest cavity before she was wrapped in linen.

The paintings collection includes work from Guido Reni, Tintoretto, Guercino, Bartolomé Esteban Murillo, Jean-Léon Gérôme, William-Adolphe Bouguereau, William Merritt Chase, Albert Bierstadt and Robert Priseman.

One anonymous painting, Christ of Ixmiquilpan, dates to the early 19th century and captures a miraculous alter scene in Mexico City.