https://www.abebooks.com/9781847250209/Tragedy-Erskine-Childers-Piper-Leonard-1847250203/plp
The Tragedy of Erskine Childers - Piper, Leonard: 9781847250209 - AbeBooks
In The Riddle of the Sands, a gripping spy story set amongst the shoals and mists of the North Sea coast in the years before the First World War, Erskine...
the tragedyerskine childerspiperleonardabebooks
https://archives.trin.cam.ac.uk/index.php/papers-of-robert-erskine-childers
Papers of Erskine Childers - archives.trin.cam.ac.uk
erskine childerspapersarchivestrincam
https://fy.wikipedia.org/wiki/Erskine_Hamilton_Childers
Erskine Hamilton Childers - Wikipedy
erskinehamiltonchilderswikipedy