Write a letter to or call the church's office and ask to withdraw membership and remove your information from their records. In the case of a withdrawal a simple announcement that someone has withdrawn from the church should suffice.Keep it short and to the point. Dear Chairman Board of Elders,. I am writing to withdraw my membership from Grace Community Church. Below, we'll take a look at some of the options available and two sample letters to remove a board member. I joined TNPC last month; however, I still need to write the letter officially terminating my membership at my parents' Methodist Church.