John Crown & Sons Ltd, builders of the Deerwood. Original company set up in 1847 by Luke Crown and his son John Crown. The company went through various name changes until such time in 1901 when it became John Crown & Sons. 1903 saw John Crown & Sons become a limited company. During WW1 the company built 4 colliers. Due to lack of orders the yard was closed between 1934-1938. WW11 was a productive time for the yard, vessels built were, 4 colliers, 9 Empire tugs, 7 flower class corvettes, 3 Isles class trawlers, 1 River class frigate and 2 Castle class frigates.
In 1946 the yard was taken over by Joseph. L. Thompson & Sons, but continued to to build ships under the name of John Crown & Sons until 1960 when the yard was merged into Joseph. L. Thompson & Sons.