A peer reviewed version of this article can be found in the 2014 Lughnasa/Samhain issue of Air n-Aithesc here
Waterhouse, The Mystic Wood, 1917
In modern American terms we tend to call anyone who works with low magic or folk magic a witch, however from an Irish perspective such people actually fell into roughly three groups: witches called caillí (singular cailleach) in Irish, fairy doctors