![](https://miamivalleytoday.com/wp-content/uploads/2022/08/129381547_web1_073022rs_johnstonfarm_historyalive.jpg)
Members of the Mad River Light Artillery fire a Civil War-era cannon during last weekend’s History Alive event at the John Johnston Farm & Indian AGency.
Members of the Mad River Light Artillery fire a Civil War-era cannon during last weekend’s History Alive event at the John Johnston Farm & Indian AGency.