senators are elected statewide every two years, with one-third beginning new six-year terms with each congress. preceding the names in the list below are senate class numbers, which indicate the cycle of their election, in this congress, class 2 meant their term ended with this congress, requiring reelection in 1942; class 3 meant their term began in the last congress, requiring reelection in 1944; and class 1 meant their term began in this congress, requiring reelection in 1946.