[1] The Dart Kitten I G-AERP first flew in January 1937 and was sold to a private owner at Tollerton airport near Nottingham.

J-99 postwar and flew with a private owner at Broxbourne airfield Hertfordshire before crashing there in November 1952.

The Dart Kitten II G-AEXT received its authorisation to fly on 30 April 1937 and had a series of owners before being badly damaged in a crash at Willingale, Essex in November 1964.

As of 2023 it is based with the Real Aeroplane Company at Breighton near Selby in North Yorkshire.

[3] A fourth Kitten was home-built at Port Moresby New Guinea in 1960 and registered in Australia as VH-WGL.