The Dairy Queen at 2635 Independence Avenue has been serving generations of Northeast residents and visitors. It has been in continuous operation for 43 years and holds that record for the Boulevard. John and Esther McMurray have owned the DQ for 30 of those years and Esther has been behind the counter for 43 years. This month they also celebrated 50 years of marriage. Wednesday a celebration was held at the DQ to honor their longevity in both areas.