The Valley of Yesterday — Annette Eyre

When Pippa returned to her beloved home, the New Zealand farm called Te Awaiti, after a year away, she was horrified at its neglected state. She was determined to bring it back to life again, but was to find that the clock can never be put back… Three men were to challenge her life before the valley of yesterday because the place that held the happiness of today, and the hopes of tomorrow.