[en] We have searched for baryon-containing radiative penguin decays in 9.7 x 10⁶ B anti B events collected at the Υ(4S) with the CLEO detector. We find no evidence for such decays, and set a 90% confidence level upper limit of B(B→X_sγX_s containing baryons)E_γ>2.0 GeV<3.8 x 10^-5. Corrections to CLEOs recent b→sγ measurement due to B→X_s(baryon)γ decays are well within the errors quoted. A search for semileptonic decays of B mesons to e anti p inclusive final states in the same data sample found no evidence for such decays and set an upper limit of B(B→anti pe^- anti ν_eX)<5.9 x 10^-4. These limits suggest that external W emission is not the dominant source of baryon production in B decay. (orig.)