Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,438 pages of information and 227,858 images on early companies, their products and the people who designed and built them.
of Phoenix Works, Grantham
"The firm was commenced about 1860 by a plumber named Pawson, and afterwards carried on by Bonnell and Hempstead, who were old employees of Ruston and Hornby's. After a time Bonnell withdrew, and the firm was then known as Hempstead and Co and had a large range workshop in Dysant Road, Grantham. The firm was still in existence in 1887, but it probably closed down soon after. The works - known as Earlesfields Works - were empty for 40 years until taken by Messrs. Potter and Co., water engineers, who still have them.." 
1852 Robert Hempsted started making agricultural instruments at George Street under Gentry in Grantham
1876 Merged the family firms of Hempsted and Felton, George Hempsted, Nathaniel Hempsted and Robert Hempsted to form Hempsted and Co
1876 Exhibitor at the Royal Agricultural Show at Birmingham with a vertical engine.
1877 Started to make steam engines and exhibited at the Smithfield Show
1884 Bankruptcy. '... Proceedings for Liquidation by Arrangement or Composition with Creditors, instituted by George Hempsted and Nathaniel Hempsted, of 68, Cow Cross-street, in the city of London, and of the Phoenix Iron and Crank Works, Grantham, in the county of Lincoln, trading in copartnership under the style or firm of Hempsted Brothers, and Hempsted and Co., as Engineers, Boiler and Crank Makers, and Brick Merchants, and as to the said George Hempsted, of Compton House, Wbodberry Down, N., and as to the said Nathaniel Hempsted, of Shelford House, Queen's-road, Finsbury Park, N., both in the county of Middlesex, and formerly of Fletton Siding, Peterborough, in the county of Northampton, and of the Patent Steam Brick Works, Grantham, in the county of Lincoln, and of 9, Station-road, Finsbury Park, and of Finsbury Park, and of New Sonthgate, and of West Green, and of Hornsey, and of Bowes Park Stations, all in the county of Middlesex, and of Hoe Street Street Station, in the county of Essex, and of the Cyclops Works, Millwall, in the county of Middlesex, and of 60, Gracechurch-street, in the city of London, trading under the style or firm of Hempsted Brothers and Hempsted and Co., Engineers, Boiler and Crank Makers, Manufacturers of Wood Working Machinery, Brick and Tile and Pipe Manufacturers and Merchants, Builders' Material and Timber Merchants, Land and Builders' Financiers, and also formerly trading in copartnership with Robert Hempsted, under the style of Robert Hempsted and Sons, at the Patent Steam Brick Works, Grantham, in the county of Lincoln, as Brick, Tile, and Pipe Manufacturers, and also formerly trading at Cyclops Works, Millwall, in the county of Middlesex, and at 60, Gracechurch-street, in the city of London, under the style or firm of Charles Powis and Co., as Engineers and Manufacturers of Wood Working Machinery....'
1885 It had become the Grantham Crank and Iron Co