While Market Day at Plougastel, Brittany, France bears a label with an address she would occupy after 1925, the painting was likely created during one of Peterson’s earlier European sojourns, and demonstrates her dexterity with both watercolor and gouache. Her use of charcoal to delineate the figures and carts, as well as individual window panes in the nearby buildings, instills the scene with a sense of rhythm and movement, as one would expect in a busy village square.
(http://www.vosegalleries.com/artists/jane-peterson/works/market-day-at-plougastel-brittany-france#.WSLP14U41WY)