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Christopher Harcourt Shacklock (1857-1934)
1857 Born in Mansfield the son of Henry Francis Shacklock, Maltster Manager at Brewery, and his wife Elizabeth Wilson
1891 Patent 16,981. Christopher Shacklock, Chapel Street, Beeston. for 'Improvements in velocipedes'.
1896 Manager of the Humber cycle factory at Wolverhampton and designed a car.
1901 Living at 6 Manby Street, Wolverhampton: Christopher Shacklock (age 44 born Mansfield), Cycle Manufacturer and Employer. With his wife Frances Shacklock (age 46 born Nottingham) and their seven children: Frank Shacklock (age 20 born Mansfield), Cycle Fitter; Joseph Shacklock (age 18 born Mansfield), Cycle Fitter; Charles Shacklock (age 17 born Mansfield), Cycle Fitter; Frances Shacklock (age 14 born Beeston); Harold Shacklock (age 14 born Beeston); Sidney Shacklock (age 11 born Beeston); and Mabel Shacklock (age 9 born Beeston).
1911 Living at 6 Manby Street, Wolverhampton: Christopher Shacklock (age 54 born Mansfield), Motor Dealer - Employer. With his wife Frances Shacklock (age 56 born Northampton) and their six children; Frank Shacklock (age 30 born Mansfield), Elec(?) Motor Works; Charles Shacklock (age 25 born Mansfield), Motor Repairer; Sidney Shacklock (age 21 born Beeston), Motor Repairer; Harold Shacklock (age 23 born Beeston), Motor Repairer; Frances Shacklock (age 23 born Beeston); and Mabel Shacklock (age 19 born Beeston). Married 33 years with nine children and of whom 8 are living. 
1916 Shacklock was an early motor agent for the Locomobile Company of America and repairer who built a few motorcycles. These were to his own, conventional design, and included one with the V-twin engine set across the frame. The V-twin had chain drive and enclosed moving parts. Only a single prototype was built.