In among old family photos I found a 'period' photo of the Highland Park Model T Plant Craneway, circa 1926 according to the 'experts'. They spotted a stack of steel wheels to the right, on the main floor to aid in dating. I had no idea what the photo was of when I found it. I researched some more and found out that my grandfather had come to Detroit in 1910 after an invitation by Edward Gray to join him at the Ford plant. My grandfather met him in Oil City, PA either on a job or at an engineering school. I knew Edward Gray was the founder of 'Grayhaven' but I didn't know that he was a major force in the design of the first assembly line- Albert Kahn is always the main name mentioned but research will show that the concept came from Gray. My grandfather left Detroit in 1919 before returning again in 1936 to work for Gar Wood at Grayhaven. Anyone have any more history on Edward Gray? Or a photo of him?