I found out the answer to my question- fabrics in kit are from andover. On the andover website, the three solids are from the kaleidoscope collection by allison glass. On her website, she says the fabrics are essentially shot cottons, with warp and weft being slightly different colors. the fabrics are 100% cotton, no linen content. She has a brochure on line with patterns made from these fabrics, which are quite nice.
Kathy