An American in Paris of the West — Suzanne G. Rogers

Just as childhood sweethearts, Katherine and Asa, begin planning a life together in Staunton, Virginia, she is forced into an engagement with another man. Heartbroken and bitter, Asa takes a job three thousand miles away in San Francisco, the Paris of the West. When fate brings Kat and Asa together again, he's fighting for his life. She'll do whatever it takes to save him, but can their shattered romance ever be healed?