Which preposition to use with gratefulness

for Occurrences 2%

Loneli's heart was simply filled with gratefulness for what he had done and she often wished in turn for an opportunity to help him out of some trouble.

in Occurrences 2%

Being German they expressed their gratefulness in song.

of Occurrences 1%

Yes, many, as Heaven knows, who heard the involuntary matin prayer, offered in gratefulness of heart, upon my knees, and in the open fields, where no eye but one could look upon the worshipper, and call the fitness of the time and place in question.

Which preposition to use with  gratefulness