3 January 1802[1] – 1 July 1864) was a legal writer who was born in Acton, Cheshire about 1802, was the only son of William Welsby of the Middle Temple, gentleman.
He enjoyed the reputation of being an accomplished scholar and lawyer, but his exertions overtaxed his strength, and on 1 July 1864 he died at 19 Holland Villas Road, Kensington, aged 61.
In conjunction with John Horatio Lloyd he published in three parts "Reports of Mercantile Cases in the Courts of Common Law" in 1829 and 1830, and he edited with Edward Beavan the second edition of Chitty's "Collection of Statutes" (1851–4, 4 vols.
The other works published under his editorship comprised J. F. Archbold's "Summary of the Law on Pleading and Evidence in Criminal Cases" (10th edit.
Welsby also edited a volume containing sixteen admirable Lives of Eminent English Judges of the Seventeenth and Eighteenth Centuries, which originally came out in the Law Magazine; nine of them were from his pen.