Born and raised in Eureka Springs, Foster is owner and operator of Mud Street Café on Main Street, an award-winning café established in 1995.
Foster joined the board at the most recent annual stockholders' meeting held in May.
Cross said: "Not only is Bobbie my daughter, she is a valued Eureka Bancshares shareholder and Eureka Springs business woman that has earned this achievement."
Foster also serves on the board of the City Advertising & Promotion Commission and has served on the board of Eureka Springs School of the Arts. She feels she best serves her community by serving her customers.