Rev. Alban Johnson, D. D.
My dear Sir: or Rev. and dear Sir: or more familiarly
Dear Dr. Johnson:

Bishops of the Roman and Anglican Communions are addressed as
_Right Reverend_.

The Rt. Rev., the Bishop of Long Island. or
The Rt. Rev. Frederick Burgess, Bishop of Long Island.
Rt. Rev. and dear Sir:

Archbishops of the Roman Church are addressed as _Most Reverend_ and
Cardinals as _Eminence_. Thus:

The Most Rev. Archbishop Katzer.
Most Rev. and dear Sir:

His Eminence, James Cardinal Gibbons, Archbishop of Baltimore.
May it please your Eminence:

The title of the Governor of a State or territory and of the President of
the United States is _Excellency_. However, _Honorable_ is more commonly
applied to Governors:--

His Excellency, William Howard Taft,
President of the United States.

Sir:--

His Excellency, Charles Evans Hughes,