Answer: rbh

AnswerCrossword Clue
RBHPresident after U.S.G.
RBHPresident before J.A.G.
RBHU.S.G.'s follower
RBH19th pres.'s monogram
RBHPresident after USG
RBH19th Pres.
RBHPresidential monogram
RBHPresidential initials: 1877-81