looking for death details.
Henri born 1833 Switzerland. father Samuel Jean Vallon born Switzerland.
married Isabelle Frances Hawkey (nee Colley) 1861 kent England.
they moved to Switzerland after marriage.
Isabelle died 1867.
Henri wrote a few books under the name of Henri-Marc Vallon-Colley up to 1873.
hoping some one has come across henri or his parents.,
