What about Mildred Brown? I think she wrote a letter? I'm not sure.
Personally, despite our disagreements, I'm just really glad the Allison family were portrayed. Their story is rarely told in most adaptions and documentaries. There's only three books that have a chapter dedicated to them, if not just a short paragraph - or usually nothing. I'm glad that they'll be portrayed in this mini-series, because a new generation should know their story. I'm glad Alice wasn't depicted as a child murderess this time. I've seen a sneak peak of episode four and their death will be quite graphic for television.