Always great to see the 4070. I rode behind her on two excursions out of Chicago to Valparaiso, Indiana in 1968 and 1969. I believe it was owned by Lou Keller and was one of Dick Jensen's projects and he ran the excursions. The attached pictures are some of what I shot on March 23, 1969 at Stilwell, Indiana reversing the train on the wye.
Fun times.