My grandfather was Josef Darr a secular Jewish emigrant to UK Naturlaised in 1903. I know he came form a large family who lived and worked in Istambul at some point in the late 19thc and ealry 20thc. They had a big business there too. Any information regarding relatives or the business would be appreciated. I have contact with another relative descendant of Gilda Darr and Hecor Nuhamso if nay of these names ring a bell please contact me.