Sir John William Anderson, 1st Baronet (ca.Born in Danzig, he was the son of William Anderson and Lucy Sheldon who had settled in that town.On 14 May 1798, he was made a baronet, of Mill Hill, Hendon, in the County of Middlesex.John, with his brother Alexander, owned a slave factory on Bance Island.[6] John was active politically to prevent any restrictions in the running of the slave trade, for example working with his brother to organise a petition to the House of Lords in 1799.