For his efforts, he gained the sum of 500 pounds, but this barely covered the interest on the mortgages held by the creditors.
In 1671, shortly after gaining the power to take such actions against criminals and debtors within his earldom, he obtained an arrest warrant for John Graham of Duchray for disobeying the orders of the king by failing to repay a debt.
John Graham of Duchray held papers of protection from the king, and said "What dar ye do?
[2] The son of Thomas Graham of Duchray, ripe for the christening at the kirk in Aberfoyle in 1671, was placed upon the ground and the Duchray party prepared their swords, guns, and muskets, avowing that half of the Earl's party would be killed and the other half would drown.
[3] Although he had been dispossessed of the majority of rights to earldom over Menteith, William Graham continued as the Earl of Airth until his death in 1694, and he died without leaving any issue.