The item stolen in this episode is a Babe Ruth cookie jar. Ty Panitz, who plays Parker Booth, is the great-great-grandson of Babe Ruth.
The victim was exposed to a number of poisons, including arsenic. The ornate green wallpaper in her home plays off this, as arsenic was used to dye wallpaper vivid green in the 1800s before its dangers were understood. Arsenic-dyed wallpaper is implicated in the death of Napoleon.
Wendy Worthington was also in an episode of "Buffy the Vampire Slayer", in which David Boreanaz also starred.
Taylor Spreitler (Courtney) played Kendra Gable in "Kevin Can Wait". Kendra's fiance, Chale Witt, was played by Ryan Cartwright, who played intern Vincent Nigel-Murray in earlier seasons of Bones.