21. IOR/L/PWD/3/180-181 Reference (shelfmark): IOR/L/PWD/3/180-181 Title: Railway Secretary's Letters from India Collection Area: India Office Records and Private Papers Languages: English Date Range: 1873-1879 Extent: 2 volumes
22. IOR/L/PWD/3/295-313 Reference (shelfmark): IOR/L/PWD/3/295-313 Title: Public Works Despatches to India (Original Drafts) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1855-1879 Extent: 19 volumes
23. IOR/L/PWD/3/412-418 Reference (shelfmark): IOR/L/PWD/3/412-418 Title: Railway Despatches to Bengal and India (Copies) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1849-1879 Extent: 7 volumes
24. IOR/L/PWD/3/506-515 Reference (shelfmark): IOR/L/PWD/3/506-515 Title: Public Works Despatches to Madras (Original Drafts) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1855-1879 Extent: 10 volumes
25. IOR/L/PWD/3/551-558 Reference (shelfmark): IOR/L/PWD/3/551-558 Title: Public Works Despatches to Bombay (Original Drafts) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1855-1879 Extent: 8 volumes
26. IOR/L/PWD/3/40-113 Reference (shelfmark): IOR/L/PWD/3/40-113 Title: Railway Letters and Enclosures from Bengal and India Collection Area: India Office Records and Private Papers Languages: English Date Range: 1845-1879 Extent: 74 volumes
27. IOR/L/PWD/3/419-432 Reference (shelfmark): IOR/L/PWD/3/419-432 Title: Railway Despatches to Bengal and India (Original Drafts) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1858-1879 Extent: 14 volumes
28. IOR/L/PWD/3/433-436 Reference (shelfmark): IOR/L/PWD/3/433-436 Title: Telegraph Despatches to India, Madras and Bombay (Copies) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1849-1879 Extent: 4 volumes
29. IOR/L/PWD/3/488-503 Reference (shelfmark): IOR/L/PWD/3/488-503 Title: Railway Despatches to India, Madras and Bombay (Copies) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1881-1899 Extent: 16 volumes
30. IOR/L/PWD/3/437-442 Reference (shelfmark): IOR/L/PWD/3/437-442 Title: Telegraph Despatches to India, Madras and Bombay (Original Drafts) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1858-1879 Extent: 6 volumes