Which preposition to use with collaborator

in Occurrences 3%

Colonel House, the President's collaborator in drafting the Covenant, if he was not, as many believed, the real author, was the only American with whom Mr. Wilson freely conferred and to whom he confided the progress that he was making in his interviews with the foreign statesmen, at many of which interviews the Colonel was present.

with Occurrences 2%

Philip Massinger (1584-1640), a later collaborator with Fletcher, wrote A New Way to Pay Old Debts, a play very popular in after times.

of Occurrences 1%

With these two began the new style, which was soon elaborated by Liang Ch'i-ch'ao, a collaborator of Sun Yat-sen's, and by others, and which ultimately produced the "literary revolution" of 1917.

Which preposition to use with  collaborator