Wooden paddle steamer Britannia built Dawson & Pearson, Liverpool, 1825
320 grt, 219 nrt, 136 x 24.3 x 14 ft; ON 8782, engines by Fawcett & Co.
Owned City of Dublin Steam Packet Co., registered Dublin from 1843
Captain Sarsfield
19 April 1849, voyage Dublin to Liverpool with 414 deck passengers
3 passengers died of exposure to cold
More history.

In the late 1840s, because of the Irish potato famine, there were large numbers of poor Irish wishing to emigrate. There was great concern that deck passengers crossing from Dublin (and other Irish ports) to Liverpool were treated worse than the cattle also carried. A Report by Captain Denham in 1849 presents this evidence - and makes proposals for a more humane procedure.

[from Liverpool Mercury - Friday 22 July 1825]:
At the same hour, the Britannia, another fine steamvessel, was launched from Messrs. Dawson and Pearson's yard. This is the fourth steam-packet belonging to the City of Dublin Steam-packet Company. The launch was attended by a numerous assemblage of ladies and gentlemen, several of whom were on board the vessel while she was launched; after which a number of the friends of the proprietors partook of a cold collation, and an abundance of wine, in the mould-room. The Britannia in equals in strength, elegance, and equipment, any of the othert fine packets belonging to this enterprising Company. She is about 377 tons burthen; and her fastenings, which we had an opportunity of examining, appear to be peculiarly excellent.

From Liverpool Mercury - Tuesday 24 April 1849
  INQUESTS. On Thursday last [19 April 1849], Elizabeth Noon and her child, and a man whose name could not be ascertained, died from exposure to cold on board one of the Dublin steamers. The deceased parties were deck passengers on board the steamer Britannia, Captain Sarsfield, which left Dublin for this port on Thursday night. The weather was exceedingly cold, accompanied with snow and hail, from which the deck passengers suffered severely, having no covering or protection of any kind. About six o'clock on Friday morning, Elizabeth Noon and child were so much affected by the cold that the former was taken into the cabin, where, though every attention was paid her, she died shortly afterwards. The child was placed in the engine-room, when, on examination, it was found to be dead. About nine o'clock the same morning, a man, unknown, was found lying dead upon the deck. It was stated by one of the passengers that the boat was so much crowded that a number of the passengers were obliged to go on the paddle-boxes. There were 414 deck passengers. All the unfortunate deceased were quite well when they left Dublin. The medical testimony was, that death had resulted from exposure to cold and the inclemency of the weather. A verdict was returned accordingly.