Which preposition to use with fru

by Occurrences 1%

You's got to go fru by dat pos' when you go inter de gate.

on Occurrences 1%

And the lighthouse keeper out there on the point; the old fru on the mountain farm, and the mountain peasant and his house-folk go their accustomed ways, and do not run about on the desolate heather-fields.

Which preposition to use with  fru