Become a member!Become a member of the Santee Historical Society It’s so easy.You can now pay your membership by check or credit card. Click here to pay by Credit Card To pay by Check,print the membership form – click here,fill it out,and mail the completed form with your check to:Santee Historical Society – Attn: Membership – P.O. Box 710636 Santee, CA 92072 The Santee Historical Society is a registered 501(c)3 nonprofit.