Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,747 pages of information and 232,400 images on early companies, their products and the people who designed and built them.
of Scotland Road, Warrington
1801 Reference to Messrs Caldwell & Whitley of Warrington as contacts in a sale notice for an ironmonger's business and premises - of 'Mr. Vardon, the late proprietor, being just dead.' 
Caldwell, Parker & Co
Supplied a steam engine to Wellington Mill, Latchford some time before 1834. Or was it Waterloo Mill?! An 1834 advert for the sale of the Waterloo Mill at Latchford included a new 12 HP high pressure steam engine by Caldwell & Parker (and two boilers by Whitley & Co of Warrington)
1843 Advert: 'IMPROVED SYSTEM OF HEATING GREENHOUSES, MELON, PINE, AND CUCUMBER-BEDS, &c.
CALDWELL, PARKER, & Co., Iron-Founders, Scotland-Road, Warrington, Lancashire, most respectfully
solicit the attention of the Nobility, Gentry, Seedsmen, Gardeners, &c. to the improvement which they have made in the system of Heating Hothouses by Water — system which supersedes all others in producing the most healthy Plants in the shortest time, for which they can produce the most undeniable reference. The improved system prevents the scorching of plants, so common to flues, and keeps the house in one regular temperature, with a saving of fuel and labour ; and the Improvers warrant their system to be superior to any other, and ultimately, far less expensive.
The Right Hon. the Earl of Derby, Knowsley, The Right Hon. the Earl of Sefton, Croxteth, The Right Hon. Lord F. Egerton, Worsley .....'[A long list followed].
1846 'Death through Fighting — An inquest was held on Wednesday morning before Mr. Hayes, at the Sessions Room, on view of the body of Charles Vickers, a young man of 22 years of age. It appeared from the evidence that the deceased was by trade a moulder, and a native of Manchester, where he was very respectably connected. He recently came to work for Messrs. Parker and Caldwell, the Iron Founders, and on Monday evening last he went in company with several of his companions, to the house of Mr. Grainger, the Moulders' Arms, Mersey street, where they met several persons in the employment of Mr. Bateson, Bridge Foundry. Whilst in the house an altercation took place respecting their merits as workmen, and the deceased called one of the persons present a knobstick. This was denied, and eventually Mrs. Grainger prevailed upon them to leave the house. On going out the deceased struck a young man named William Jefferson, who agreed to fight him, and immediately the parties, ten in number, went under a lamp at the Bridge Mill, when Jefferson and deceased commenced fighting. They fought about five rounds with equal advantage, every time each of them was knocked down they were picked up by their respective friends ...... The jury, after a short consultation, returned a verdict of "Manslaughter" against the principal William Jefferson, whereupon he was committed to the ensuing assizes, for trial. The other parties in custody were discharged, as it appeared they endeavoured to stop the fight several times, but the deceased persisted in prolonging it.' 
1848 Advert: 'Valuable Iron Foundry, Scotland Road, Warrington. Mr. HILL, at the Linn Hotel, in Warrington, .... An IRON FOUNDRY, on the south-west side of Scotland Road, within Warrington, in possesion of Messrs. Caldwell, Parker, and Co., the site whereof contains 365 yards, and is freehold of inheritance.— Also all those commodious and roomy premises situate on the Northeast side of Scotland Road, aforesaid, consisting of millwrights' shop, dressing shop, boiler shed, smithy, cart shed and stable, large warehouse, offices, yards, and other buildings in the possession of Messrs. Caldwell, Parker, and Co., with seven Cottages, In the several occpations of .... 
1848 'NOTICE is hereby given, that the Partnership heretofore subsisting between us, Peter Caldwell, Robert Parker, Richard Kitchen, and John Morgan, heretofore carrying on trade, at Warrington, in the county of Lancaster, and at Runcorn, in the county of Chester, as Iron-founders, under the firm of Caldwell, Parker, and Company, was this day dissolved by mutual consent: As witness our hands this 22d day of November 1848. Peter Caldwell. Robert Parker. Richard Kitchen. John Morgan.'