A Thistle in the Spring — Linda Shaw

Colleen Wainwright, wealthy oilman's daughter, and West Burdock, wildcatter, taker of risks, faced each other in court, where they fought over custody of his daughter, the infant Colleen had adopted before he knew of its existence.

Then they faced off again in private, where their love for tiny Anne drew them together. Each was convinced the other had no more love to give, but love wears many guises, and the love of a child soon turned to another kind of love: the love of the father for the mother in all but blood the love of man for woman.