Sivlia: The Stockman's Slovak Mail Order Bride (Sweet Land of Liberty Brides #3)
Lorena Dove

Silvia stayed in New York after her friend Nathalie Luxe lost her store and travelled to South Dakota as a mail order bride. She and her brother, Emil, are on their own until Silvia receives a highly improper proposal from a man she thought was her protector.
Dell Casey, a dashing, black-haired Irishman, is working to keep the Eagle River Ranch left to him by his uncle. He needs to both sell his horses at an upcoming stock sale, and find a wife or risk losing it all.