1. IOR/E/1/68 ff. 266-267v Reference (shelfmark): IOR/E/1/68 ff. 266-267v Title: Letter 124 Memorial of Robert Wallace Johnson in Brentford to the Court asking that his son, Lieutenant Robert Groat Wallace Johnson, succeed Captain Thomas Call as Surveyor General. Collection Area: India Office Records and Private Papers Languages: English Date Range: 28 Mar 1781 Extent: 1 letter