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John Adam Hilger (1839-1897), scientific instrument maker
1839 Johann Adam Hilger was born in Darmstadt, Germany
1881 Philosophical instrument maker, employing 8 men, living in Tottenham Court Road, London with his wife Celine Hilger 36 and daughter, Martha Hilger 10 months
1891 Optician, living in St Pancras with Celine Hilger 42, Martha Hilger 10
1897 Died in Brighton