File contains letters from J. W. Grant, Master of Barrels Lightship; and M. N. Hogan, Mate, with details of: sighting of floating mine ; submarine sightings ; crews from ship brought aboard following sinking by submarine attack (5 May 1918).

File contains letters from Thomas F. Ryan, Principal Keeper Blackhead, with details of: ships torpedoed and sunk near Station (February 1915 and December 1917) ; actions taken in reporting Enemy submarine (May 1918).

Files contain letters and telegrams from L. Stocker, Principal Keeper Blackrock (Mayo); and W. E. Evans and W. H. Godkin, Assistant Keepers. Include are details of: crew of Schooner 'George & Mary' sunk by submarine arrived by small boat at Station (June 1915) ; submarine and suspicious vessel sightings ; services rendered to crew of HMS 'Paxton' who had spent 8 days in a lifeboat (May 1917) ; refund for provisions supplied to survivors of HMS 'Paxton' ; request by L. Stocker for a medal from Naval Authorities for a medal for his services to crew of HMS 'Paxton' ; Commissioners do no support claim for medal.

File contains letters from H. Crowley, Principal Keeper Broadhaven, reporting sighting of suspicious object (May 1915) and sinking of SS 'Aranmore', torpedoed by German submarine (March 1916).

Files contain letters from J. J. Duff, Master of Coningbeg Lightship; and J. Murphy, Mate, with details of: wreckage sighted ; explosion under the Lightship (2 March 1917) ; lifeboat and gear picked up (March 1917) ; Captain and crew of Saltes Leigth Ship brought aboard after 4 days at sea (16 March 1917) ; crews from ships brought aboard following sinking by submarine attacks (1 October, 21 November 1917) ; Mine Sweepers exploding mines ; compensation for supplying clothing and provisions to crews of torpedoed vessels ; submarine sightings.

File contains letters from W. Wafer, Master of Daunts Rock Lightship; and Admiralty, with details of: information re the moorings of the lightship ; proposal to establish telephonic communication between the Lightship and the mainland not proceeded with ; orders to discontinue submarine bells ; submarine sightings ; crews from ship brought aboard following sinking by submarine attack (23 April 1917).

File contains reports from Michael Polly, Principal Keeper Dunmore East, and J. Connolly, Assistant Keeper, of sighting several ships sunk in the area having been torpedoed or struck mines. Also included are details or crews being landed in Dunmore East.

Files contain letters and telegrams from E. Berrells, Principal Keeper Eagle Island; and N. Loughrey and J. Crowley, Assistant Keepers. Include are details of: sighting of suspicious vessel ; submarine attacks 20 miles North-West of Station (May 1915) ; services rendered to crew of SS 'Cherburg' who landed at Eagle Island (29 April 1915) and were brought to Shore Dwellings ; submarine sightings.

File contains letters from R. J. Duffy and J. Ryan, Principal Keepers Galley Head. Included are details of: reporting to Coastguard re lifeboats from torpedoed vessel SS 'Arabic' (August 1915) ; reports of dead bodies of two women washed ashore from 'Arabic' disaster (October 1915) ; report of cargo steamer sunk (September 1916) ; reports of Danger Signals flown by boats in distress (October 1917 and March 1918).

File contains reports from W. Eager, Principal Keeper Hook Tower, of sighting several Patrol Boats sunk in the area having struck mines. Also included are details of a large Barque torpedoed and sunk on 29 April 1917.

Files contain letters and telegrams from P. J. O'Donnell and R. Duffy, Assistant Keepers Inishtearaght; and J. Cooper and F. Curling, Principal Keepers. Included are details of: sightings of submarines and floating mine ; Oil Tank Steamer in Distress (January 1917) ; assistance to crew of SS 'Scalpa' who landed on Skellig (April 1917) ; Leith Hull & Hamburg Steam Packet Co. payment for provisions supplied to crew of SS 'Scalpa' and reward for Keepers ; reducing power of Light (March 1918).

File contains letters from John Doyle, Master of North Arklow Lightship; and William Kehoe, Mate, with details of: crews from 2 schooners brought aboard following sinkings from submarine attacks (25 March 1917) ; sinking of small steamer (1 September 1917).

File contains letters from T. Faulkner and J. Grant, Principal Keepers Rathlin East, with details of: bodies picked on shores of Island (January 1915) ; SS 'Knightsgarth' abandoned following torpedo attack drifted onto rocks on Island (January 1917) ; torpedo striking rocks under Station and sinking of SS 'Andania'.

File contains letters from T. King, Principal Keeper Rockabill, with details of: sightings of submarines ; compensation for clothing and provisions given to shipwrecked crew of SS 'Salamania' who landed on Rock on 30 March 1918 ; compensation for clothing and provisions given to shipwrecked crew of SS 'Poliwell' who landed on Rock on 5 June 1918.

Files contain letters and telegrams from F. Coupe, Principal Keeper Skelligs. Included are details of: Norwegian barque 'Superb' torpedoed (June 1915) ; rescue of two boat loads of survivors from Wreck of SS 'Marina' by signalling to passing ship with flags, fog gun and lights (October 1916) ; reward for rescue of crew of SS 'Marina' from Donaldson Bros Ltd. and Board of Trade ; shipwrecked crew of Norwegian Ship sunk by submarine landed on Rock and assisted by Keepers (August 1918).

File contains letters from R. O'Neill, Master of Skulmartin Lightship; and G. Conway, Mate, with details of: sightings of suspicious vessels ; sighting of submarine attack on three steamships (2 May 1917).

Files contain letters from J. J. Duff and [H?] Higginbotham, Masters of South Rock Lightship; and Admiralty with details of: submarine sightings ; rewards for submarine sightings ; sightings of suspicious vessels ; sighting of submarine attack, sinking 5 steamships (2 May 1917) ; sighting HMS Destroyer taking enemy submarine to Belfast (8 July 1917).

File contains expressions of sympathy from the Commissioners of Irish Lights 'with the City of Dublin Steam Packet Company, the relatives of the Officers and Crew, and all those who have suffered by the loss of the RMS 'Leinster''. Includes acknowledgement from City of Dublin Steam Packet Company.

File contains letter from W. J. Callaghan, Principal Keeper Tory Island, re reporting sighting of enemy submarine off Island (6 February 1915); and reports from William Snow, Assistant Keeper, of three shipwrecked crews landing at Island: SS 'Sebek' of Liverpool torpedoed on 21 April 1917, all 40 crew safely landed ; Norwegian Barque 'Acadia' boarded by German submarine crew on 23 April 1917 and sunk, crew of 19 safely landed ; SS 'Dromore' of Liverpool, 43 crew and Captain safely landed on 28 April 1917.

File contains letter from J. Glanville, Principal Keeper Tuskar Rock Lighthouse, reporting Captain and Crew of SS 'Cairns' of Glasgow landed on Rock at 5.30 am on 14 August 1915, their vessel having been sunk by shell fire from German Submarine.