I have scanned the Jo Daviess site for resources, and I have looked for an Illinois death record for one "John Grant Light" who, according to family tradition, worked in Galena as an engineer. He may have owned or managed a gas company there after 1918. He became a widower in New York state in early 1918 where I have also been unable to find any trace of him. We have no record whatsoever after his wife's death in 1918, his age then only 48. I have been unable to locate any records for two of his three children as well. He likely owned property. If anyone has any suggestions, or resources covering this period, or recommendations on where I might go next, I would appreciate it greatly. Thank you. -JL