HOLDEN – Michael and Elaine Tremble are pleased to announce the engagement of their son Andrew Francis Tremble to Megan Elizabeth Doerrer, the daughter of George and Sandy Doerrer of Clinton, Conn. Megan is a 2002 graduate of the Morgan School in Clinton, Conn., a 2006 graduate of Stonehill College in Easton, Mass., and received her Master of Arts degree in teaching in 2008 from Simmons College in Boston. She is a middle school math teacher in Medford, Mass. Andrew is a 2002 graduate of John Bapst Memorial High School in Bangor, a 2006 graduate of Boston College in Chestnut Hill, Mass., and received his master’s degree in accounting in 2008. He is an accountant with PricewaterhouseCoopers in Boston. The couple is planning a July 2010 wedding, in Cape Cod, Mass.