KENNEBUNKPORT, Maine — South Congregational Church pastor Charlie Whiston has been serving not just his 350 parishioners, but the entire community of the Kennebunks for the past 27 years. This fall, he is retiring and heading south for the next chapter in his life. Whiston arrived at South Congregational Church in Dock Square in January of 1991 and quickly enmeshed himself into the fabric of the community.