She retired from the Natural History Museum in 1966 and retained a room in the Crustacea Section which she shared with Dr Sidnie Manton, and continued to work in the Museum until about 1971.
Isabenlla Gordon retirouse do Museo de Historia Natural en 1966, aínda que mantivo un despacho na sección de crustáceos que compartiu co Dr. Sidnie Manton, e continuou traballando no Museo até 1971.