- Main article: List of Surviving Lonsdale Records
The list of Lonsdale Records relating to the Lowther family and the Earls of Lonsdale are stored at the Cumbria Record Office (Carlisle Headquarters). The Lowther Family Estate have thousands of records listed in various categories and sub-categories ranging from DLons/L5 to DLons/L25. The records relating to the 11th Border Regiment (Lonsdale) range from DLons/L13/13/1 to DLons/L13/13/282
D LONS/L13/13/90–94
Transport
- D LONS/L13/13/90: Railway warrant counterfoil books - date: 13 September 1914 - 8 January 1915
- D LONS/L13/13/91: File re training courses and arrangements for transport and accommodation - date: 25 May - 1 July 1915
- D LONS/L13/13/92: File re the treatment and inspection of horses - date: 1 February - 13 July 1915
- D LONS/L13/13/93: File re transport and particularly the use of horses - date: 28 May - 18 November 1915
- D LONS/L13/13/94: Papers re transport - date: 16 October 1914 - 20 November 1915
—For access to the above records please contact the Cumbria Archive Centre (Carlisle)