all nouns forming parts of hyphenated compounds should be capitalized.
36.

In side heads capitalize the first word and proper nouns only.
37.

Personal titles as follows: a.

Titles preceding a name and so forming part of it.
_King George V._ _Pope Benedict XV._ _Duke William of Aquitaine._ But not otherwise.
_Woodrow Wilson_, _president of the United States_, _the emperor of Germany_, _the present king of Spain is Alfonso XIII_.
b.

Titles used in place of the name with reference to a particular person or to the present holder of an office.
_I hope when in Rome to see the Pope._ _He hoped some day to become pope._ c.