I'm reviewing her book in that anthology, Beast in View, for this blog. Beast in View won an Edgar for best novel in 1956. The central plot device shocked audiences with a little known psychological
The other attention she is receiving is less attractive. In the recent volume of correspondence between Ken Millar (Ross Macdonald) and Eudora Welty, it's Mrs. Millar who comes off looking like the beast. In the letters, it's very apparent that Welty and Millar are having an emotional affair. While their physical locations do not allow anything more, the editors of the volume downplay the significance of an emotional affair. Instead they want to portray Margaret as vindictive when she tells Welty that she reads the letters. However, it makes perfect sense in the light of emotional infidelity.
By setting the parameters of cheating so narrowly, the editors seek to make Margaret the villain, when in fact she is merely a woman who is fighting for her marriage.