If I wanted to write a letter to the Canton at Argau, Switzerland, requesting information on Friederich Hunziker who was born in Feb 6, 1829. Looking for his parents, who he married, her parents name, children born, his brothers etc. etc.; who would i address the letter too? At that time do I send money, or make a promise to pay when infor delevered? Help? Thanks: Duane Hunziker