my L 56 alumni also told me that the area changed a lot. when they first got there all the work was down the hill toward Washington Ave- 46&27 area. then after a few years the 43 and 75 districts changed overnight into a war zone. One example was Montgomery & Popham Ave- he said they were normal blocks they never went to. Then within two years they were bombed out vacants, as he said- at least a 100 jobs in a very small area in a short time. half the buildings on those two blocks were torn down. hard to believe.