I think the second would qualify as a reliable source actually while it s self published the author appears to have been published in the topic area by reputable organizations You have a point in that the author is a member of the Folklore Society although he seems to be otherwise self taught his background appears to be in relatively unrelated fields However in this case it s probably best a question of do we need this information here It just seems to briefly repeat what we have in the article The link only seems to serve to advertise the author s site