  The CLEO Collaboration recently reported the observation of the $B^0\to
D^{*-}p\bar{n}$ mode at a rate only a factor of 4--5 lower than $B^0\to
D^{*-}\rho^+$ and $D^{*-}\pi^+$. We try to understand this with a factorization
approach of current produced nucleon pairs. The baryon weak vector current form
factors are related by isospin rotation to nucleon electromagnetic form
factors. By using $G^{p,n}_M$ measured from $e^+e^-\to \bar{N}N$ and
$p\bar{p}\to e^+e^-$ processes, assuming factorization of the $B^0\to D^{*-}$
transition and the $p\bar n$ pair production, we are able to account for up to
60% of the observed rate. The remainder is argued to arise from the axial
current. The model is then applied to B decays to other mesons plus $p\bar{n}$
modes and $D^{*-}$ plus strange baryon pairs.
