Contact Us Contact Us Contact the Trisomy 18 Foundation with any questions or requests for information. Online Form Row concave Shape Decorative svg added to top Our Location Trisomy 18 FoundationNational OfficePO Box 15031Baton Rouge, LA 70815 Get in Touch gengholm@trisomy18.orgVirginia Engholm, Executive Director Make a Donation To send a donation by mail, download this form and mail it with your check to our address listed on this page.