Bonded is for placemats and Hiloft is for comforters. Minnie uses sheets to back her quilts. During the depression flour still came in sacks, girls school dresses were made out of those flour sacks and when the dresses were out grown they were cut up and made into a quilt top. Since the 1950s polyester has been used as the batting. When cotton was used you had to quilt a whole lot closer to stop the cotton from wadding.
Cotton is much harder to quilt through.
They could quilt a quilt in one day. They would bring a casserole dish each. In those days to get a quilt out of the way they would hang the frame from all four corners from the ceiling and roll it up and down. Cordie quilted an hour or two at a time, all work by hand and used frames. She would cut little squares from the material from old worn out shirts and the girls dresses.