To the President,
Executive Mansion,
Washington, D. C.

Professional men such as doctors and lawyers as well as those having
legitimately earned College Degrees may be addressed on the envelopes by
their titles, as

Jonathan Janeway, M. D.
Hubert Houston, B. L.
Matthew Marks, M. A., etc.

The residence of the person addressed should be plainly written out in
full. The street and numbers should be given and the city or town written
very legibly. If the abbreviation of the State is liable to be confounded
or confused with that of another then the full name of the State should
be written. In writing the residence on the envelope, instead of putting
it all in one line as is done at the head of a letter, each item of the
residence forms a separate line. Thus,

Liberty,
Sullivan County,
New York.

215 Minna St.,
San Francisco,
California.

There should be left a space for the postage stamp in the upper right
hand corner. The name and title should occupy a line that is about