I'm looking for information on Andrew Ferdinand DESSAU (died about 1869 in Washington), married Hermine? (born in 1830 in Germany and died after 1883 in St. Louis, Missouri). Andrew Ferdinand had a piano factory, Dessau & Co, with Benjamin F. Clark and R. A. Bacon. In 1868, he invented a useful improvement in Piano Fortes.
They may have had a son : Frank/Ferdinand A. Dessau, born April 22, 1856 in Virginia and died in 1935 in Saint- Louis, Missouri.
Thank you in advance for any information.
Cordially. Nadine (France)