Can anyone help me find a death dates?

Anna Sofia Andersdotter, born in Vassviken, Animskog, Sweden? She died in Idd, Halden, Ostfold, Norway. She married Nils Ingvald Iversen born 17 January 1876 in Idd, Ostfold, Norway. I'm not sure when either one of them died or where they died.

Nils Ingvald was married once before and had a son Jens Invaldsen born 17 September 1899 in Idd, Ostfold, Norway but maybe someone can tell me if they had any children together.

Thanks
Catherine