Capitals / A Primer of Information about Capitalization with some Practical Typographic Hints as to the Use of Capitals

by Frederick W. Hamilton

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. Familiar names applied to a particular person.

the Father of his Country.
Unser Fritz.
the Little Corporal.