I'm sorry for your loss.
From what you describe about the first hen it sounds like Salpingitis or "Lash Egg".
http://www.the-chicken-chick.com/2014/12/salpingitis-lash-eggs-in-backyard.html
http://www.the-chicken-chick.com/2015/03/causes-of-lash-eggs-salpingitis-by.html...