Harold Maxwell-Lefroy dating history

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Harold Maxwell-Lefroy (20 January 1877 – 14 October 1925) was an English entomologist. He served as a Professor of Entomology at Imperial College London and as the second Imperial Entomologist to India. He left India after the death of two of his children from insect-borne diseases. He worked on applied entomology and initiated experiments on the use of chemicals to control insects. A formula developed by him was utilized to save Westminster Hall from destruction by wood-boring beetles while others were made use of to control lice in the trenches during the First World War. The success of his chemicals led to increased demand leading to the founding of a company to produce insecticides, Rentokil. He was killed in an accident while experimenting on fumigants to control insects.