George Frederick Leycester Marshall, English colonel and entomologist (d. 1934)
Major-General George Frederick Leycester Marshall (27 March 1843 Bridgnorth, Salop – 7 March 1934) was the son of William Marshall (a clergyman) and his wife Louisa Sophia, also brother of C. H. T. Marshall and uncle of Guy Anstruther Knox Marshall. He became a Colonel in the Indian Army and was a naturalist interested in the birds and butterflies of India. Marshall described several new species of butterflies, along with Lionel de Nicéville, and discovered the white-tailed iora, sometimes referred to as Marshall's iIora. He wrote The butterflies of India, Burmah and Ceylon.

Marshall retired from the Royal (late Bengal) Engineers in November 1897. Marshall married Elizabeth Huntley Muir (1851, Agra - 1913) at Allahabad in 1874. One son George Leycester Knox (born 1875) died young at Simla on 20 July 1883. Marshall was made CIE in the 1893 New Year Honours.