I don't know much about them. Learned a little from that article. Hoping that isn't what bit your baby. Here's a map and the area of distribution:
http://ohioline.osu.edu/hyg-fact/200...s/2061_map.gif
Distribution
The brown recluse spider and ten additional species of Loxosceles are native to the United States. In addition, a few non-native species have become established in limited areas of the country. The brown recluse spider is found mainly in the central Midwestern states southward to the Gulf of Mexico (see map). Isolated cases in Ohio are likely attributable to this spider occasionally being transported in materials from other states. Although uncommon, there are more confirmed reports of Loxosceles rufescens (Mediterranean recluse) than the brown recluse in Ohio. It, too, is a human-associated species with similar habits and probably similar venom risks (unverified).
http://ohioline.osu.edu/hyg-fact/2000/2061.html