Lionel Simeon Marks

| birth_place = Birmingham, England | death_place = Providence, Rhode Island, United States | nationality = British | workplaces = Harvard University
Massachusetts Institute of Technology | alma_mater = | occupation = Engineer | employer = | known_for = ''Marks' Standard Handbook for Mechanical Engineers'' | signature = File:Lionel S. Marks Signature.png | spouse = Josephine Preston Peabody }}

Lionel Simeon Marks (8 September 1871 – 6 January 1955) was a British engineer and one of the pioneers of aeronautics. He was born and mostly educated in England, but in 1892 moved to the United States. During World War II he was a chief consulting engineer to the US Bureau of Aircraft Production. His ''Marks' Standard Handbook for Mechanical Engineers'' is considered as classical reference work. Provided by Wikipedia