On my own bookshelf I have a copy of the Ghosts and Scholars anthology, which Richard co-edited with that other great expert on ghostly fiction, Ro Pardoe. He edited two volumes of The Virago Book of Ghost Stories, The Mammoth Book of Ghost Stories, and Dracula's Brood: Neglected Vampire Classics. All are worth seeking out. I regret not getting to know Richard in person, but on the occasions I corresponded with him (he never took to email) I found him charming, informative, and helpful. Here is a brief obituary.
I suspect Richard is now rediscovering classics in a more wondrous library than any of us left behind can imagine.