Which preposition to use with fenn

on Occurrences 1%

The introduction to the 1898 edition of "Fenn on the Funds," expresses the view that our Government is ready to protect our traders abroad, but only helps investors when it suits it to do so.

over Occurrences 1%

PASTON LETTERS, a series of letters and papers, over a thousand in number, belonging to a Norfolk family of the name, and published by Sir John Fenn over a century ago, dating from the reign of Henry V. to the close of the reign of Henry VII.; of importance in connection with the political and social history of the period.

Which preposition to use with  fenn