1st quilt is called Grandmother Flower Garden. The prints appear to be mostly 1920-30s.
2nd quilt is called Bow Tie. It appears to have fabrics from about 1910-1935.
3rd quilt would have been called Mosaic Block or Postage Stamp quilt in the 1930s. The name Around the World seems to have come later. But many of the fabrics appear to be shirtings from the 1880s-1910s. Perhaps they were set together later with the fine red strip, maybe in the 1930s, but this kind of striped fabric was also printed in the earlier time period.
They are wonderful finds and deserve your special attention. You might add a label with the information you know about them and how you chose to finish them.
Jan in VA