I found this on the “Children's Page” of the July 1931 issue of The Farmer's Wife.
Memorize these rules about Our Flag:
Our Flag must not be used as a tablecloth. Nothing but a Bible may rest upon it.
Never place Our Flag below the seats on a platform or stand, or twist it in any fancy shapes whatever. Use bunting for decoration instead.
Never let Our Flag touch the ground or floor or trail in the water.
When hanging against the wall, Our Flag's stripes may be vertical or horizontal but the stars must always be in the upper left-hand corner as you stand facing it.
When in parade with other flags Our Flag must always be at the right or in front.
When Our Flag is hung over the middle of a street it should be hung vertically with the stars to the north in an east and west street or to the east in the north and south street.
When a flag is worn out and can no longer be used, it is burned with reverence and respect.