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Millwright of Great Alfred Street, Nottingham.
1866 Company formed
1867 The Minerva printing press.
1892 March. Bankruptcy. Long detailed report.
1892 Adjudication. 'Cropper, Henry Smith, Machine Builder, Fairlawn, Private - road, Nottingham, lately trading at Minerva Works, Alfred-street North, Nottingham, with John Cropper and Samuel Thacker, as H. S. Cropper and Co.' 
After the bankruptcy of the business and the deaths of Henry Smith Cropper and his father John Cropper in the following year, the manufacture of printing presses was continued in the business of his son Sydney Harry Cropper as Cropper, Charlton and Co