I hope that this letter finds you in good health and high spirits. Dear Mr. Ullman: I am writing to inform you that I am withdrawing my application for the program coordinator position.Below is a sample union resignation letter. You should check your union's constitution and bylaws to see if it is specific to whom a resignation must be sent. Powering human achievement through global immigration expertise, people-centered client services and innovative technology. Legal authority to invest its funds in the County of Santa Clara Investment Pool.