The Shamrock Shipping Company : (Jacks' Boats) /by W.J. Harvey.

Taken from original documentary and photographic evidence, this is a historical account of The Shamrock Shipping Company and D Dorman & Company, two Ulster companies trading along parallel lines, before converging in 1976. It includes black and white photographs and copies of company records such as a Memoranda of Association, company agreements and an original letter issued by David Dorman in 1881. A chronological list of ship histories gives details of ship dimensions, number of engines, number of cylinders and machinery type.