Andrew Wyeth , Letter to Martha Burchfield Richter, Pg. 3, April 8, 1968; ink on paper, 10 1/2 x 7 1/4 inches; Charles E. Burchfield Archives, Purchased with funds from the Vogt Family Foundation in honor of Dr. Edna M. Lindemann, 2004
give your mother my kindest greetings. Please do come here and visit us at the mill. I will be here until around the first of June – It would be a great pleasure to meet you.