I agree Lambert asserts that he was first published source so this part is not totally original research The verifiability see wp v of his claim is questionable Why should Wikipedia report Lambert s version without independant verification of his claims He is not a recognised authority on academic or religious terminology O Brien is another primary source she doesn t work for the OED or any of the usual places we go to when we want an authorative answer to when terms originated Also O Brien does not directly credit Lambert so even this source doesn t directly support the article text Also neither Lambert nor O Brien state that the term was ever used to define a style of Celtic Studies What we really need is a citation that states that the Harvest magazine really was the first appearance