If you are based in the United States, please contact the Planned Giving Team at Cambridge in America by visiting https://cantab.myplannedgift.org/
This site will tell you more about planned giving from the USA.
You will become a lifetime member of The 1209 Society. Membership includes invitations to special events, receipt of a recognition certificate, receipt of a bi-annual newsletter and e-newsletter and listing in The 1209 Society Roll of Honor (a bound book listing honorees kept by the University).
Cambridge in America is a registered 501(c)(3) tax-exempt organization under the Internal Revenue Code, and kindly handles living and legacy donations on behalf of the College.
Our colleagues at Cambridge in America can be contacted on (212) 984-0962, by email to email@example.com or in person at 1120 Avenue of the Americas, 17th Floor, New York, NY 10036.