Text and photographs copyright of Jim Shead.
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Relationship: recommended William Gravatt.
|1816||Calder and Hebble Navigation||He met the company's engineer, Thomas Bradley, in London to discuss dredgers. Donkin had previously sent a plan for a dredger to the company.|
|1817||Calder and Hebble Navigation||He received an order for a dredger from the company.|
|1832||Calder and Hebble Navigation||Recommended William Gravatt as engineer for the navigation under Thomas Bradley.|