As the son of a blacksmith and an Italian immigrant mother who served in the Marines during World War II, Joseph G. McGraw has a bit of an old-world background. But the chief judge of the 17th Judicial Circuit is more of a futurist when it comes to the courts. The 59-year-old Rockford resident who hears cases from both Boone and Winnebago counties led an effort to allow cameras and microphones in his courtrooms. He has also pushed to reduce county jail populations and divert offenders from incarceration to drug …