Crook and Dean
Crook & Dean's Phoenix Foundry, of Little Bolton, Lancashire
1821 Mention of Crook and Dean, millwrights, Little Bolton.
1825 Mention of Crook and Dean's Foundry, Little Bolton.
1825 'IMPORTANT INVENTION.— A person of the name Roberts, who is at present in Bolton, has constructed an apparatus, which will prove useful and valuable in the highest degree. Its object is the safety of life and property, in cases of fire, or where any noxious vapour exists. It consists of hood and mouth piece, contrived to render the wearer enabled to breathe, with perfect ease and safety in the midst of the densest smoke. In case of dwelling-houses, ware-houses, factories, ships at sea, &c., being on fire, its advantages are incalculable. Roberts exhibited the efficacy of the above extraordinary discovery at mines of lhe Earl of Belcarras, a few weeks since, to the complete satisfaction of those who witnessed it. And lately the recommendation of several persons in Bolton and the neighbourhood, of the highest respectability, he invited some of the principal tradesmen and inhabitants of the town to meet him at Messrs Crook and Dean's foundry, Little Bolton, where he demonstrated the infallibility of his apparatus, to the utter astonishment of a very respectable party of gentlemen. In the course of the trial, he went into a stove-room, in which sulphur, hay, &c., were burning at the same time. He was shut in for the space ot twenty minutes, and came out at the expiration of that time perfectly sound and uninjured.—Had any one without the apparatus remained in the room longer than a minute, it would have been attended with certain death.— Bolton Express.'
1828 Crook and Dean of Phoenix Foundry: Iron and brass founders, manufacturers of steam engines, hydraulic presses, weighing and mill machines, gas light apparatus, sugar mills and constructors of fire proof buildings 
1841 Premises for sale. 'All that compact and well arranged PREMISES, situate in Fold's-road, Little Bolton, formerly occupied the late Mr. William Dean, and known the name of the "Lower Millwright’s Shop" comprising of Large Workshop, two stories high; Smithy, with four Smith’s Fires, prepared to be worked by power; Iron Warehouse, Long shade with room over, and other smaller Workshops, with Counting House, and Store Rooms attached. The premises occupying about 1424 superficial square yards. Together with the Steam Engine, Boilers, and Gearing, all in complete order. The Lathes, Cranes, Benches, and other articles on the Premises, may also be let along with the Premises if required. For further particulars, and for an inspection of the premise, apply at the Phoenix Foundry, Little Bolton '
1845 Advert for the sale of machinery, etc, at Lower Foundry, Fold Road, Little Bolton, by order of the executrix of the late Mr W. Dean. 
Sources of Information
- Manchester Mercury - Tuesday 27 November 1821
- Lancaster Gazette - Saturday 29 January 1825
- North Devon Journal - Friday 25 February 1825
-  Pigot and Co.'s National Commercial Directory for 1828-9
- British Steam Locomotive Builders by James W. Lowe. Published in 1975. ISBN 0-905100-816
- Bolton Chronicle - Saturday 06 March 1841
- Bolton Chronicle - Saturday 20 December 1845