They were seen in Joliet, Wyoming, on Monday morning at 12:11 heading east on I-90. Paul Brown made a purchase in Spearfish, SD at 4:30 PM on Monday, August 8th. They may possibly be heading to the Chicago area.
Brown and the missing children are driving in a white, 2000 Pontiac Grand Am, 2 door. Washington license plate #AYM 6244.