Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 136,294 pages of information and 219,021 images on early companies, their products and the people who designed and built them.
The Leinster and the Ulster were two of the crack paddle vessels of the time. Sister vessels were PS Connaught and PS Munster. The latter 3 were built by Laird Brothers. Two of them had paddle engines built by J. Watt and Co, the third by Ravenhill, Salkeld and Co