Manchester and Salford Yeomanry cavalry was a short-lived yeomanry regiment formed in response to social unrest in northern England in 1817 . The volunteer regiment became notorious for its involvement in the 1819 Peterloo Massacre , in which as many as 15 people were killed and 400 – 700 were injured . Often referred to simply as the Manchester Yeomanry , the regiment was disbanded in 1824
Peterloo Massacre
Peterloo Massacre
Manchester and Salford Yeomanry