The cigarettes Elvadine smokes in the movie are herbal, not tobacco.
"Walter crouly home 12/14/63" is carved on the back of the chair on the front porch.
Kevin Costner and Mare Winningham had been castmates in Wyatt Earp (1994), the immediate prior screen credit to this film for both. Costner and Winningham would be castmates again in Swing Vote (2008) and Hatfields & McCoys (2012).