Lu Dalton, in an article in the Woman's Exponent, teaches that the Church considers only God alone to be infallible.
Lu Dalton, Woman's Exponent 11, no. 4 (July 15, 1882): 31
We consider God, and him alone, infallible; therefore his revealed word to us cannot be doubted, though we may be in doubt some times about the knowledge which we obtain from human sources, and occasionally be obliged to admit that something which we had considered to be a fact, was really only a theory.