“I figure as the 'duck' in the 'Adventures.”
The Lewis Carroll Picture Book (1899), p. 360
The Reverend Robinson Duckworth, DD, CVO, VD , was a British priest, who was present on the original boating expedition of 4 July 1862 during which Alice's adventures were first told by Lewis Carroll . He is represented by the Duck in the book, a play on his last name.
He officiated at the funeral of Charles Darwin in 1882. Wikipedia

“I figure as the 'duck' in the 'Adventures.”
The Lewis Carroll Picture Book (1899), p. 360
Of the origin of Alice in Wonderland.
The Lewis Carroll Picture Book (1899), p. 358