More ideas if you are still searching for info on accident:
I have seen the newspaper article, but can't locate the relative who has it:
Check these out:
Klemme (Iowa) Times [no longer published but probably archived somewhere]
The Mason City (Iowa) Globe Gazette
The Garner (Iowa) Leader.

The accident occurred in Iowa, in or around Kanawha or Klemme Iowa, not Wisconsin.

My mother recalls the incident. I am searching for a photocopy of the newspaper article. If I find it, where shall I send it?

Jeanne