Which preposition to use with stonemason

by Occurrences 1%

He was a stonemason by trade, and though comparatively uneducated, was possessed of a brilliant imagination, and so highly endowed by nature with poetic ability that he frequently amused and delighted his fellow-workmen by singing songs which he extemporized while at his work.

in Occurrences 1%

One of this discontented pair, Abel Handy, had been put into the hospital by Mr. Harding himself; he had been a stonemason in Barchester, and had broken his thigh by a fall from a scaffolding.

Which preposition to use with  stonemason