Contact Us Chicago Office The Gamaliel national office is located in the historic Hyde Park neighborhood of Chicago. 5401 S Cornell Ave. Suite 301 Chicago, IL 60615 Office Hours: 9-5 pm Central Mon - Fri 312-357-2639 [email protected] Board of Directors >> National Staff >> Email Us Use the form below for nonurgent matters that don't require immediate attention. Your name Please enter your name. Your email Please enter a valid email. Your phone Please enter a valid phone number. Your message Please enter a message. Send Message Message Sent! Message failed. Please try again.