Which preposition to use with plasterer

at Occurrences 2%

Gebir, my old free-mason, and prince of plasterers at Babel, bring in your trowel, most Ancient Grand!

with Occurrences 2%

He had said nothing to our host about the turnkey, wishing as few persons as possible to know of that matter, but doubted not that we should by all means hasten our departure from the island, for that as soon as the turnkey was missed inquiry would certainly be made for the plasterers with whom he was last seen.

Which preposition to use with  plasterer