Mr. and Mrs. Walter J. Bett of Cheektowaga celebrated their 50th wedding anniversary with a blessing at a Mass in Holy Mother of the Rosary Cathedral, where Bett and Helen A. Kowalski were married Aug. 6, 1955. A family dinner followed in Country Comfort Restaurant. He is a retired mail carrier for the U.S. Postal Service, Buffalo. The couple has five children and six grandchildren.