Cynthia Day Stratton, daughter of Mrs. Clifton Jairus Stratton Jr. of Chevy Chase, Md., was married on June 25 in the Great Choir to Martin Donald O'Malley, son of Judge and Mrs. Donald O'Malley of Montrose, Pa. Canon Charles Martin performed the ceremony and a reception was held at The Washington Club.

The bride, who was given in marriage by her brother, Clifton Jairus Stratton Ill, is also the daughter of the late Clifton J. Stratton Jr., a Washington attorney. Her mother is an attorney specializing in real estate investment and historic renovation.

Joanna Lenore Stratton was maid of honor for her sister, assisted by Mrs. DuBose Montgomery, Vivian Loftness and Nyla Krueger. Michael O'Malley served as best man for his brother and the ushers were Lawrence S. Smith, Phillip O'Malley, and John Vitale Jr.

The former Miss Stratton, an alumna of The Sidwell Friends School, attended Wellesley College. She received a B.S. in economics from The Massachusetts Institute of Technology and a master's degree from the Stanford Graduate School of Business. A member of the Texas Society of Certified Public Accountants, she is with the accounting firm of Ernst & Ernst in Houston, Tex.

Mr. O'Malley was graduated from the Wharton School of Finance of the University of Michigan Law School. A member of the state bars of Texas and Pennsylvania, he is the assistant corporate secretary of the Zapata Corporation of Houston.

Mrs. O'Malley is the granddaughter of Mrs. Clif Stratton of Topeka, Kan., and the late Mr. Stratton, the Washington correspondent for the Topeka Daily Capital and the Capper Publications for over thirty years. She is also the granddaughter of Mrs. William Georges of Seattle, Wash., and her great-grandfather was Judge Lee Monroe of Topeka, an early developer of West Texas, and her great-grandmother was Lilla Day Monroe, the first woman Lawyer of the state of Kansas in the nineteenth century and a noted sufiragist and publisher.