Although the restaurant was established on Ascension Thursday (7 May) in 1964, the house dates to about 1737 and is a fine example of Creole architecture. There are several intimate dining rooms and a beautiful New Orleans-style courtyard shaded by ancient live oak trees. The shrimp and lump crabmeat is an interesting spin-off of the escargot appetizer, and the Sisters of the Sea au gratin is exquisite. Open Monday-Saturday for lunch and dinner. Reservations recommended. $$$. Most major credit cards. 138 Rue Magnolia, Old Biloxi, Biloxi. Phone 228-374-0163. http://www.marymahoneys.com.