After the Slavery Abolition Act 1833, Anderdon was paid a large sum of money for the emancipation of slaves on three estates in Nevis who he claimed he was entitled compensation for due to his banking activities.
[5][6] His collection of engravings after portrait paintings was largely acquired at the 1852 sale of the estate of Thomas Haviland Burke.
[7] In 1868, he gave to the Print Room of the British Museum Haviland Burke's collection of James Barry's engravings and drawings.
[10] His collection of engraved portraits, mostly from the Haviland Burke sale, was left to Alexander Anderdon Weston, a cousin.
[7] Anderdon illustrated and annotated, in a form of "grangerisation", two distinct runs of past summer exhibition catalogues of the Royal Academy.