I am looking for information on Edmond Coste who was born in 1833 and married Emma Hancock in London,possibly in 1849.They had 5 children,Edmond jnr,Frederick,William,Ada and Sarah.He was a goldsmith and was blind by 1891.He died between 1891 and 1900.I am looking for information on him prior to 1881 also parents,siblings etc.Anything however small would be great.Many thanks