Promise of the Willows by Jean Grant

Book One of The Salinas Valley Saga. From the farmers of the 1900s to the men and women of the 1990s, this series tells the story of a California family connected with the Salvation Army, devoted to God and deeply proud of their heritage. Carrie McLean's family is trying to farm a plot of land in arid northern California, but the drought is worsening. Do the willow trees hold the promise of water?