Which preposition to use with licentiate

of Occurrences 7%

"And mine is Tom Thurnall, F.R.C.S., Licentiate of the Universities of Paris, Glasgow, and whilome surgeon of the good clipper Hesperus, which you saw wrecked last night.

in Occurrences 3%

Then he thought that had there been no imprisonment, he would have been betrothed, or a husband, at this time, a licentiate in medicine, living and working in some corner of his province.

for Occurrences 1%

Edward was likewise recommended as a licentiate for the ministry.

Which preposition to use with  licentiate