My gg grandfather.,descended from his second wife Maria Thereas Zuicke 1827-1901.(first wife Cathereine Queen)I am looking at any members of this family (forebears or descendants),they were engineers with an iron foundry.,lived in Calcutta,Poona,Madras ,Lahore and Darjeeling.Seemingly by 20th century most branches of family were in the UK.I would like to know about his antecedents?? when did they go to india ?and where from and why? Also does anyone know anything about Maria Theresa?My great uncles Lawrence and Patrick emigrated themselves later (Australia and Argentina respectively) any information here?I do have some information and pictures but would be grateful for any help.