Francis Gilbert Dyke Acland

Year of birth, date of death, and family information from archive.org:
The Right Honourable Sir THOMAS DYKE ACLAND, eleventh Baronet, of Columb-John, in the county of Devon, a Member of Her Majesty's Most Honourable Privy Council, Justice of the Peace and Deputy-Lieutenant for the county of Devon, and a Justice of the Peace for the county of Somerset ; Master of Arts and Honorary Doctor of Civil Law of the University of Oxford ; Member of Parliament for West Somerset, 1837-1847; for North Devon, 1865-1885; and for West Somerset, 1885-1886; Honorary Colonel 3rd Volunteer Battalion Devonshire Regiment, and formerly Major Devon Yeomanry Cavalry. Born May 25, 1809, being the eldest son of the late Sir Thomas Dyke Acland, tenth Baronet, Member of Parliament for the county of Devon, by Lydia Elizabeth his wife, only daughter of Henry Hoare, of Mitcham Grove.
Clubs — Athenaeum, National Liberal, Farmers.
Armorial bearings — He bears for Arms : Chequy argent and sable, a fesse gules, and in chief, his badge of Ulster as a Baronet ; and for his Crest, upon a wreath of the colours, a couped arm lying fesseways, to the sinister azure, gloved argent, thereon a falcon perched proper, beaked, niembered, and belled or; with the Motto, "Inébranlable".
Married, firstly, March 14, 1841, Mary (who died June 11, 1851), daughter of Sir Charles Mordaunt, eighth Baronet, of Massingham ; and, secondly, Mary (who died May 14, 1892), daughter of John Erskine, Esquire.
By his first marriage he has had Issue — (1) Charles Thomas Dyke Acland, Esquire ; (2) Francis Gilbert Dyke Acland, Esquire, born 1843, died August 24, 1874 ; (3) the Right Honourable Arthur Herbert Dyke Acland, Esquire ; Cicely, died 1851 ; and Agnes Henrietta.
Estates and postal addresses — Killerton, Exeter ; and Holmcote, Taunton.'

(I have edited the text above a little to correct obvious mistakes by the OCR software.)

Wikipedia mentions that Sir Thomas had another daughter named Mary Lydia, but does not mention Francis Gilbert:
Acland married firstly Mary Mordaunt, daughter of Sir Charles Mordaunt, 8th Baronet, in 1841. Before her death in 1851, they had three sons and two daughters, including:

Sir Thomas Dyke Acland, 12th Baronet (1842–1919), who married Gertrude Walrond, a daughter of Sir John Walrond, 1st Baronet.
Mary Lydia Acland (b. 1846), who married the Rev. Richard Hart-Davis in 1872.
Sir Arthur Dyke Acland, 13th Baronet (1847–1926), who married Alice Cunningham, a daughter of Rev. Francis Macaulay Cunningham.
Agnes Henrietta Acland (1851–1935), who married Frederick Henry Anson, son of Rev. Frederick Anson.
He married secondly Mary Erskine, only surviving child of John Erskine, in 1856. This marriage was childless. Lady Acland died in May 1892.

Acland survived her by six years and died in May 1898, aged 89. He was succeeded in the baronetcy by his eldest son Thomas, who was also a politician. Acland's second son Arthur, who succeeded to the baronetcy in 1919, also had a successful political career.