Currently researching U-boat World War 1 activity on the west coast of Ireland. Attached is a copy of Defence of Realm Act Nov 1914.

Source: http://www.nationalarchives.gov.uk/pathways/firstworldwar/first_world_war/p_defence.htm

Also attached is a copy of a Petty Court Session in Mayo 1918, Steelaun where a relative of mine was fined for having a light in her house visible during sunset and sun rise in contravention of realm act. There was U Boat activity all around this coast line area. There is also anecdotal info on U Boats stopping at lighthouses, isolated inlets along coast etc. for fresh supplies as bread, milk from sympathetic parties?

Any input on such activity would be appreciated.

Currently researching U-boat World War 1 activity on the west coast of Ireland. Attached is a copy of Defence of Realm Act Nov 1914.

Source: http://www.nationalarchives.gov.uk/pathways/firstworldwar/first_world_war/p_defence.htm

Also attached is a copy of a Petty Court Session in Mayo 1918, Steelaun where a relative of mine was fined for having a light in her house visible during sunset and sun rise in contravention of realm act. There was U Boat activity all around this coast line area. There is also anecdotal info on U Boats stopping at lighthouses, isolated inlets along coast etc. for fresh supplies as bread, milk from sympathetic parties?

Please note electrifcation did not occur until the late 1940S

https://esbarchives.ie/2017/09/18/electrifying-ireland-how-esb-connected-one-million-irish-homes-to-the-national-grid-1929-1978/

I am seeking an example of a sighting of a U boat in the Achill / Belmullet / Killala region of Mayo 1914 - 1918 .