My great grandfather was Joseph Marty born 1881 in Switzerland(from the German-Swiss side)He married a woman named Anna.Joseph and Anna Marty lived in San francisco many years.Joseph died at the age of 100.One of Joseph and Anna's children were Marie Lena Marty(also called Mamie or Mary)She married Ralph Robert Chapman and had my dad William(Bill)Raymond Chapman who died in 1992.I am looking for any Marty connection as I have little information.If anyone suspects he is in their line,please let me know.Thank you.