Helen Bebie, 94, a native of Switzerland and Chevy Chase resident for nearly 20 years, died of miningitis Friday at Suburban Hospital.

Born in Davos, the daughter of the engineering chief of the Rhaetian Alps Railway, she recalled riding on her father's shoulders at the age of three at ceremonies marking the opening of construction of tracks, tunnels and viaducts over the Albula pass linking the city of Chur with the towns of Samedan and St. Moritz in the Engadine Valley.

In 1913, she married Dr. Jules Bebie, also a native of Switzerland. She and her husband lived in St. Louis, where he was a chemical engineer for the Monsanto Chemical Co. and later taught chemical engineering at Washington University. He died in 1956.

Mrs. Bebie was active in the St. Louis and Washington Ethical Societies. She served on the board of directors of the Internation Institute in St. Louis before moving to Chevy Chase in 1961 to live with a daughter, Mrs. John Seabury (Peggy) Thomsom, a local free-lance writer.She spent her summers with another daughter, Mrs. G. Hiram Stoner (Yvonne) in Seattle.

Besides her daughters, survivors include a son, Hans, of Bellevue, Wash., nine grandchildren and three great-grandchildren.