Susan and William Sargent of Trenton are pleased to announce the engagement of their daughter, Colleen Sargent, to Benjamin Cummings, son of Roberta Kearney and husband, Chris, of Bar Harbor, and Russell Cummings and wife, Debbie, of Bar Harbor. Sargent is a 2013 graduate of Mount Desert Island High School. She graduated from the University of Maine at Augusta with an associate degree in science and certified dental assisting. Cummings is a 2010 graduate of MDI High School. He graduated from Maine Maritime Academy in 2014 with a power engineering technology degree. He is employed as a power technical assistant for International Paper. The couple currently reside in Rome, Ga., and plan to marry in August.