JG
John Stephen Glasby
John Stephen Glasby was a British author born in East Retford in Nottinghamshire whose work spanned a range of popular genres. A professional research chemist and mathematician, he produced more than 300 novels and short stories during the 1950s and 1960s, most of which were published under pen names by the Badger Books imprint.
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books

The Brooding City And Other Tales of the Cthulhu Mythos
2015
ISBN 9781605438344