Lynne Marie Gilbert, a graduate of St. Lawerence University, and Gregory Eugene Agoston, a graduate of Canisius College with a doctorate in chemistry from University at Buffalo, were married at 4 p.m. Saturday in Cherrydale United Methodist Church, Arlington, Va. The Rev. Lawrence W. Buxton heard the vows of the daughter of James L. and Marilyn P. Gilbert of Chatham, N.J., and the son of Anna F. Agoston of Town of Tonawanda and the late Eugene A. Agoston. A reception was given in the Sequoia, Washington, D.C. The bride is a communications manager for ERG, Arlington, and the bridegroom is a research scientist at EntreMed Inc., Rockville, Md. They will be at home in Germantown, Md., after a trip to St. Lucia.