1. IOR/L/PS/15/231-234 Reference (shelfmark): IOR/L/PS/15/231-234 Title: Printed material relating to the Imperial Service Order Collection Area: India Office Records and Private Papers Languages: English Date Range: [1902] 1938-1941 Extent: 4 volumes
2. IOR/L/PS/15/232 Reference (shelfmark): IOR/L/PS/15/232 Title: List of Companions of the Imperial Service Order Collection Area: India Office Records and Private Papers Languages: English Date Range: 1938 Extent: 1 volume
3. IOR/L/PS/15/231 Reference (shelfmark): IOR/L/PS/15/231 Title: The Statutes of the Imperial Service Order: Instituted 8 August 1902 Collection Area: India Office Records and Private Papers Languages: English Date Range: Unspecified Extent: 1 volume
4. IOR/L/PS/15/233 Reference (shelfmark): IOR/L/PS/15/233 Title: List of Members of the Imperial Service Order. Corrected to the 1 July 1941 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1 Jul 1941 Extent: 1 volume
5. IOR/L/PS/15/234 Reference (shelfmark): IOR/L/PS/15/234 Title: List of recipients in India of the Imperial Service Medal. Corrected to the 12 Jun 1941 Collection Area: India Office Records and Private Papers Languages: English Date Range: 12 Jun 1941 Extent: 1 volume