Pink and white blossoms with magnolia leaves set the scene while candlelight glowed in St. John's Episcopal Church, Georgetown Parish, when Lisa Ann Jackson and John Mandell Ourisman exchanged marriage vows on October 28. The evening ceremony was performed by the groom's brother, the Rev. David Jesse Ourisman of the Methodist Church of Seaville, N.J., uniting the daughter of Mrs. Teasley Jackson of Washington, D.C. and John Burton Jackson of McLean, Va. to the son of Mrs, Miller Freed of Elberon, N.J. and Mandell Jack Ourisman of Chevy Chase, Md. A reception was held at the Mayflower Hotel with music by the Howard Devron Orchestra.

Escorted to the altar by her father, the bride was lovely in a full length wedding gown of candlelight Alencon lace and seed pearls appliqued with leaf-shaped satin inserts around the hemline and border of the cathedral length mantilla. She carried a semi-cascade of stefanotis and miniature ivy centered with catalaya orchids.

Kris Adair Jackson, sister of the bride, was maid of bridesmaids were: Lauris Ann Jackson, her other sister, Elizabeth Ann Freed, sister of the groom; Frances Relyea Brady, Mrs. Brooke Rosenthal Foley, cousin of the groom; Renee Jean Karol, and Peggy Jean Koenig. They wore long flowing gowns in soft raspberry with long sleeves, round necklines, and blouson bodices with matching sashes and slippers. Their bouquets consisted of rhubrium lilies.

The bride's mother was in full length pink chiffon with long sleeves and a silver beaded bodice. The groom's mother wore ankle length beige chiffon.

The bridegroom, in white tie and tails, had his step-brother, Thomas Eric Korengold, as best man, his other step-brother, Daniel Lynn Korengold; Robert Benjamin Ourisman, his brother, David Keith Jackson and John Burton Jackson Jr., the bride's brothers; Stephen Austin Hayes, Robert S. Bennett, John Marmaduke Lynham, and Claude Coleman Sloan, as the ushers.

A graduate of the Holton-Arms School and Cornell University, the bride is a systems engineer with IBM. Her mother, an historian, is a freelance writer. Her father is president of the Federal Systems Division and vice-president of International Business Machines. Mr. Ourisman, a graduate of the Landon School and Rollins College, is vice-president of Ourisman Chevrolet Co., Inc. His mother is a student of archeology and his father is president of Ourisman Chevrolet Co., Inc.

After a honeymoon in London, England the couple will make their home in Alexandria.