I decided to look for that article of Bart Mitchell giving blood for his ill sister. I have a sub for Newspaper.com and did a general search -actually finding the article 15 minutes into the search. The sister in question was not Jennie, but Winifred who had married William Baumer (more on them in a future post). So, here is the article from the Sioux County Index dated 03 Feb 1922.
A quick note here: The daughter mentioned at the end of the article was not Winifred and William's only child. I will talk more on the family in an upcoming post.