Fr Edmund Hogan
The work of Locus is based on Fr Edmund Hogan's Onomasticon Goedelicum.
Fr Edmund Hogan SJ (1831-1917)
Biography on Ainm.ie.
A photograph of Fr Hogan has been made available online by the Irish Jesuits on Flickr.
Onomasticon Goedelicum
First published by Hodges, Figgis & Company, Dublin, in 1910. Reissued by Four Courts Press, Dublin, in 1993 ISBN 1-85182-126-0.
An updated annotated copy of the Onomasticon prepared by Prof. Donnchadh Ó Corráin is available for download here