Ann Carroll Hemingway Watson, the daughter of Mrs. Stuart Symington of New Canaan, Ct., Washington, D.C., and Camden, Me. and the late Arthur K. Watson, was married last Saturday at the First Presbyterian Church of New Canaan, to Richard Agnew Bresnahan of Warren, Me. The bride was given in marriage by her older brother, Arthur K. Watson Jr., in a ceremony performed by the Rev. T. Guthrie Speers Jr. The reception followed at the home of her mother.

The bride was attended by Mrs. James Rafferty, the matron of honor, and her sisters, Jane and Caroline Watson, as maids of honor, assisted by her cousin, Ann Hemingway, Jane Crary, Elizabeth Simmons, Rebecca Fish, Barbara Martin, and Christine Eddy.

Serving Mr. Bresnahan were his brothers: Thomas Bresnahan, the best man; David, Walter, Donald and Mark Bresnahan, ushered along with David Flanagan, Philip Moody, Brendan Curran and Stuart and David Watson, brothers of the bride.

The bride was graduated from the Ethel Walker School (Conn.) and attended the University of Paris and Colby College (Me.). Her late father was chairman of the board of the IBM World Trade Corporation and a former ambassador to France. She is the granddaughter of the late Thomas J. Watson, founder of the IBM Corp. and the late Mrs. Watson, and of the late Mr. and Mrs. Stuart C. Hemingway of Syracuse, N.Y. Her stepfather, Stuart Symington, is the former Senator (D.Mo.) and former Secretary of the Air Force.

Mr. Bresnahan is the son of Mr. and Mrs. Richard Bresnahan of North Scituate, Mass. His father is a pharmacist in Weymouth and his mother a realtor with Dwyer and Mullin in Cohasset. He is the grandson of Mrs. Jeremiah Francis Bresnahan of North Scituate and the late Mr. Bresnahan, and of Mrs. Walter A. Morris of Meridan, Conn. and the late Mr. Morris. Mr. Bresnahan, a graduate of North Scituate High School, is president of Country Way Carpentry, Inc. in Camden, Me. After a brief honeymoon, the couple will live in Camden.