The article "Bacon Stir Fry" (pp 58-61) is - as the title suggests - about Kevin Bacon. New to me: the information that the movie "was made on a very, very limited budget". The article also has some information about how the technical side of creating the ghost in the story. (David Koepp also explains about this in the "Making of" part on the special edition DVD of the movie.)
Sadly, as it is the case in most of the articles on "Stir of Echoes" I've read so far, Kathryn Erbe is only mentioned in the caption of one of the two pictures she can be seen in.