More to explore:
Margaret MacDonald MacIntosh
A woman to research!
Charles Rennie Mackintosh
Charles Rennie MacKintosh
Harry Napper textile Art Nouveau - love the colors. I don't know about the overlap of Art Nouveau and the Arts and Crafts movement.
Charles Rennie MacKintosh 'Dahlias'
Margaret MacDonald Mackintosh Textile From the House For An Art Lover - Belahouston, Glasgow
Margaret MacDonald 1902
Charles Rennie MacKintosh textile design. Tulip and Lattice, textile design, 1920.