For the Roses by Julie Garwood — book slip

The Clayborne brothers, once a rough gang of street urchins, found an abandoned baby girl in a New York City alley and named her Mary Rose.

They moved to Blue Belle, Montana, to raise her as a lady, forming a family bound by loyalty and love. Their peaceful life is disrupted when Lord Harrison Stanford MacDonald arrives, brandishing a six-shooter and a swagger.

Despite his initial bravado, Harrison proves to be a gentleman, and Mary Rose touches his heart with a deep passion. However, a shattering secret threatens to unravel everything Mary Rose believes about herself and her newfound love.

First in the 'The Clayborne Brides' series.