It looks like there is/was a co-ed hospitality fraternity at Purdue, though it looks like the website may not have been updated in quite some time so I don't know if the contact info will work.
Pi Gamma Theta
ETA: I also went and searched Purdue's student organization site. It looks like the org is now listed as Pi Gamma Theta/Eta Sigma Delta and is described as a professional society for students in hospitality management.
https://vwave-06.itap.purdue.edu/cgi...D50-8AF/submit