Beside Two Rivers by Rita Gerlach

A tale of love won and love lost, and the faith to find it again. From the banks of the Potomac to the misty moors of England, Darcy follows a path where the secrets of the past slowly rise to the surface in this dramatic saga that began in Before the Scarlet Dawn.
She meets Ethan Brennan, an aspiring English horse breeder, who embraces her independent spirit and marvels at the simplicity of her faith.