Evergreen Credit Union Evergreen was founded in 1951 as the S.D. Warren Credit Union located in Westbrook. The mission was to serve the employees and families associated with the S.D. Warren paper mill. Sappi later purchased the mill and continues to operate on the same site today. As we grew and our membership expanded, we changed our name in 1999 to Evergreen Credit Union. To accommodate further growth, we built and moved into our new corporate offices at 225 Riverside…