Herbert D. Kastle 
Breakdown [PDF ebook] 

This short but spine-chilling tale from the golden age of science fiction focuses on Harry, a humble farmer who spends his days tending to his crops with the help of his wife Edna. But gradually, a sense of unease has begun to break into his daily routine as vague memories of another life filter into his consciousness. Is he losing his mind — or is something more nefarious going on?