FRANKLIN — Richard and Chari Andersen of Franklin, are very pleased to announce the engagement of their daughter Calli Chae Andersen to Andrew William Mahoney son of Michael Mahoney and Eileen Andreoli of Winooski. Calli is a 2009 graduate of Missisquoi Valley Union High School and 2011 graduate of Vermont Technical College School of Nursing. Calli is employed as a nurse at Northwest State Correctional Facility in St. Albans. Andrew is a 2009 graduate of Winooski High School and attended Clarkson University in Potsdam, N.Y. Andrew is employed at Mylan Technologies in St. Albans.