Major-General George Frederick Leycester Marshall was the son of William Marshall 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.