[3] This same source named City of Cork as the first steam ship built in Ireland, but the source's date for the build year for Marchioness of Wellesley is three years too late.

Another account states that Marchioness Wellesley was constructed by the Horseley Ironworks, Staffordshire, under the supervision of her owner, John Grantham.

[4] Marchioness Wellesley first appeared in Lloyd's Register (LR) in 1828 with P.Barry, master, and the Dublin and Wexford Steam Co. as owner.

On 15 January 1833 Marchioness Wellesley towed into Waterford Calcutta, of Liverpool, Watson, master.

Calcutta had left Liverpool for India but had lost her masts, boats, rudder, and anchor.