Which preposition to use with americanism

of Occurrences 4%

" Another key to his strong hold upon the popular mind was to be found in his thorough Americanism of training and sympathy.

in Occurrences 3%

Traces of this curious theory of Americanism in its application to Washington may now be found in many places.

on Occurrences 1%

It would be surprising if Americanism on the Western plains were not as sound as in the crowded cities.

to Occurrences 1%

She delivered some edifying exhortations upon the subject of Americanism to Polyglot Elsa, of the Élite Restaurant (who had taken upon her sturdy young shoulders the support of an old mother and a paralytic sister, so that her two brothers might enlist for the wara detail of patriotism which the dispenser of platitudes might have learned by judicious inquiry).

Which preposition to use with  americanism