There is no author with the name "E H Blackwood-Price". There are a number of authors who use the name "Blackwood" but none with "E H" as their initials or a combination of the two. It's possible there's a typo or a misspelling in the name.
If you can provide more context, like the genre of books they write or any specific titles, I might be able to help you find the author you're looking for.