Contact Please contact us at: The Sienna Project (A Non Profit Organization), All Souls Unitarian Church 2952 South Peoria Ave. Tulsa, OK 74114 Or call 539.777.2923 or fill out the form below. Your Name (required) Your Email (required) Your Phone #* Subject Your Message Please don't add me to the Sienna Project mailing list. To prove you are a person, let us know what is the abbreviation of the state where Tulsa is (upper case)?