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Born in 1815 in Deal, Kent.
1846 William Ladd, Philosophical Instrument Maker, 39, Penton-place. Walworth.
1856 Developed a type of electric generator. An example is on display at the Museum of the History of Science in Oxford.
1885 May. Died. 'Mr. William Ladd, the well-known scientific instrument maker, is dead at the age of seventy years. Mr. Ladd's name is associated with several of the pieces of apparatus employed by Dr. Faraday. He was a maker of large induction coils and of dynamo which bears his name.'