Which preposition to use with sibley

for Occurrences 1%

Work Was commenced soon after the passage of the law, and in a short time a demand was made by the railroad companies upon Gov. Sibley for the issuance of the bonds, in accordance with their idea of the terms of the contract made by the state.

on Occurrences 1%

We were sitting around the fire, just as we are siting now, Tommy Collier on my right, and Harry Sibley on my left, when the bottles on the table began to clink and the windows to rattle, and poor Harry, who was leaning back in his chair, crashed over backwards to the floor.

Which preposition to use with  sibley