When CJ switches places with her father and takes over driving, they pull away from "C Gallucci Realty, Inc.", which is at 1379 West Taylor Street in Chicago, Illinois. They are supposed to be in Dayton, Ohio.
After a call from the White House (at about the 40 minute mark), CJ has to leave during her speech. As she is explaining to her father the reason, she refers to him by his first name "Tal (short for Talmidge) instead of Dad.
In The Black Vera Wang we meet C.J's niece Hogan. C.J says "My older brothers are golf crazies" Indicating that she has more then one older brother. Yet they do not appear, they are never mentioned and there is no evidence of their existence in the home. C.J is left to deal with her fathers illness alone without and help from her "brothers"