Which preposition to use with ironmonger

in Occurrences 4%

Previous to the year 1760, there were very few travellers, (if any,) went from Birmingham with intent to sell the manufactures; the custom at that time, and for many years afterwards, was, for the ironmongers in different parts of the kingdom to bring their money and orders with them, and to wait until the goods were brought in, and see them packed before they left the town.

of Occurrences 1%

Wafler irons are required and can be obtained at any good ironmongers of the Hebrew persuasion.

Which preposition to use with  ironmonger