Scott ' s air circus . Air circus comes to town . Display opened by Eileen Marson . Air minded Londoners had their own holiday attraction brought almost to their doorsteps , when the air circus formerly owned by Sir Alan Cobham opened a short season at Mays Lane , New Barnet today ( Easter Sunday ) . Miss Eileen Marson , the actress opened the display by raising the civil aviation flag at the field . Photo shows , Miss Eileen Marson with Mr CWA Scott ( left ) , Mrs Winifred Crossley , the woman acrobat of the circus and Billy Milton , the actor , about to make an autogyro flight after opening the display . 12 April 1936