J. J. Stockall and Sons

of Clerkenwell Road, London.
1858 Established by J. J. Stockall.
1896 Advertised under "Electric clocks, makers of"[1]
1901 Introduced Workmen's Time recorders.
At some point Thomas James Stockall was managing director of the J J Stockall company[2]
1907 J. J. Stockall was Chairman. The company was put into liquidation[3]
1908 R. M. Marples joined the business
1909 Thomas James Stockall. who had been managing director of the company.[4] was found guilty of stealing jewelry from the company's warehouse[5]
Before 1912: G. H. Gledhill and Sons took over the time recorder section of J. J. Stockall and Sons[6].
1912 Incorporated as a Limited Company - Stockall, Marples and Co (1912)