Which preposition to use with mahon

for Occurrences 1%

In the course of the evening we had speeches by Hallam and Lord Mahon for the historians; Campbell and Moore for the poets; Talfourd for the dramatists and the bar; Sir Roderick Murchison for the savans; Chevalier Bunsen and Baron Brunnow for the diplomatists; G. P. R. James for the novelists; the Bishop of Gloucester; Gally Knight, the antiquary; and a goodly sprinkling of peers, not famed as authors.

than Occurrences 1%

But it also seems that the clause against raising and keeping on foot a standing army without the consent of Parliament was not more violated by keeping a mixed garrison in Gibraltar and Port Mahon than garrisons consisting of native soldiers only; and undoubtedly the keeping of an armed force in both these fortresses had been sanctioned by Parliament.

Which preposition to use with  mahon