From his book 'La Lyre Sacree'
Louis Raffy (1868 — March 1931)
He was organist at the St. Nicolas church Nérac, which is in the South West of France. He was born near here. The organ doesn't appear to be very big, 23 ranks/stops from what I can work out from the French. It was built by Jules Magen Barthélémy, a student of Cavaille-Coll in 1852 and modified and completed in 1862. It was restored in 1983 by the organ builder Alain Leclere.
If you visit this page you can see a picture of the organ and the church, which looks very beautiful. https://fr.wikipedia.org/wiki/Église_Saint-Nicolas_de_Nérac
I uploaded this piece yesterday on the Skinner organ. ajongbloed suggested I do a version on Caen for comparison, so here it is. Check out the other version on the Skinner organ here: http://www.contrebombarde.com/concerthall/music/22923
Hope you enjoy.