1. IOR/F/4/1226 Reference (shelfmark): IOR/F/4/1226 Title: Board's Collections Vol 1226 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1820s Extent: 1 volume
2. IOR/F/4/1226/40067 Reference (shelfmark): IOR/F/4/1226/40067 Title: Scope & Content: Further papers regarding the working of the Delhi Canal, Vol 1. Collection Area: India Office Records and Private Papers Languages: English Date Range: Jul 1823-Dec 1827 Extent: 1 file
3. IOR/F/4/1226/40068 Reference (shelfmark): IOR/F/4/1226/40068 Title: Scope & Content: Further papers regarding the working of the Delhi Canal, Vol 2 (includes a coloured sketch map of the canal in the neighbourhood of Bahadurpur, by Captain John Colvin, scale 1=354= =4= 800 yards, pp 556-57) Collection Area: India Office Records and Private Papers Languages: English Date Range: Jun 1823-Aug 1827 Extent: 1 file