Douglas and Jennifer White, of Havre de Grace, announce the engagement of their daughter, Jessica Leigh Pritchett, of Westminster, to Aaron Joseph Messer, of Westminster, son of Larry and Theresa Messer, of Hagerstown. The bride-to-be is a 2010 graduate of Harford Community College. The groom-to-be is a 2005 graduate of Stevenson University. He is employed by the Carroll County Media Center. An Oct. 12, 2013, wedding is planned.