Possibly the Mabel Bourne who, in piano recitals in South Kensington in 1883, performed 3 Sketches of her own composition among other works. (A song cycle "Songs of the seasons" by Mabel Bourne is mentioned in a 1909 magazine; however it is possible that this is by the more famous - possibly a younger relative? - Una Mabel Bourne (1887–1974), who was composing from age 5.)