The notice is from the London Gazette, January 7, 1840:
NOTICE is hereby given, that the Copartnership heretofore subsisting between us the undersigned, Robert Dixon the elder, William Austin, and Alexander Phillips, Earthenware Manufacturers, at the-Sunderland Pottery, in the borough of Sunderland, and also at the Hylton Pottery, in the parish of Monk Wearmouth, both in the county of Durham, under the firm of Dixon, Austin, and Company, hath been dissolved, by mutual consent, so far as concerns the said William Austin, as and from the 31st day of December last past; and that all debts due and owing to and from the said late firm will be received and paid by the said Robert Dixon the elder and Alexander Phillips, who are authorised to receive and pay the same,—Dated this 4th day of January 1840.
Robert Dixon, senr.
1807 to 1812, John Phillips
1813 to 1818, Dixon, Austin, Phillips & Co
1818 to 1839, Dixon, Austin & Co
1839 to 1865, Dixon, Phillips & Co
I have saved the information on a new page entitled Dixon partnerships.