Which preposition to use with cathcart

in Occurrences 2%

He wrote more than once to the President for relief, resting his claims upon Eaton's convention and the letter of the Secretary of State read to him by Consul Cathcart in 1802.

of Occurrences 1%

" After notifying Cathcart of his appointment to Tunis, the Secretary directs him to evade the thirty-six-gun frigate, and to offer the Bey ten thousand dollars a year for peace, to be arranged in the same underhand way.

under Occurrences 1%

"And where your excitement overcame you to the point of producing illusions," added Dr. Cathcart under his breath, yet not so low that his nephew did not hear it.

Which preposition to use with  cathcart