I have a Joseph Sedam born in Switzerland Co. Indiana son of John Sedam. Joseph married Nacy Markey. Is your Nancy Dorrell another marriage? Joseph's daughter AnnaBelle Sedam married Theodore Christian. Annabelle was my great grandmother. Joseph had about 10 children and gave them all middle danes. I think Joseph is burried near Burlington, Indiana. I don't know if this is in Johnson Co. but that is where Joseph is from. I am looking for proof that William Suydam is the father of Henry Sedam from Switzerland Co. In.If you think we connect please feel free to contact me.