My work appears in the same volume as other scholars (RITUAL, PLAY, AND BELIEF.....) and since then I am asked whether I know whether some of the other scholars' work is theirs. I can assume that it is. But I do not know these others apart from having met them at a conference and do not know about all their publications.
Decades ago I wrote a review of a work by John Bonner, but I do not know all his publications in order to vouch for an article being by him. He has also been deceased for decades.