To Tame a Gambler — Nancy Pirri

In 1880, college Professor John O'Connell arrives in Bozeman, Montana. He meets seemingly shy Grace Morgan but discovers this 'Penny Dreadful' writer is also a gambler and is anything but proper. For Grace, gambling is a way to make a living, if one were good at it, which she was. With most of her family gone, except for her aunt and fourteen-year-old brother, she wanted a better life than they'd had.