Career
His company was responsible for developing and marketing Penny Patent Soap Powder and Glycerine Spa Power (to wash clothes) and Eggs and Butter Powder (for cooking). Twelvetrees" name appears in a sea shanty, "On Board Of The Kangaroo", composed by Harry Clifton. Twelvetrees wrote a book on the life of a slave – The Story of the Life of John Anderson, the Fugitive Slave – published by William Tweedie of London in 1863.
The book was reprinted by Dodo Press in 2009.
