REMOVE

1. North American; American
2. Yoakum, Joseph E.
3. Smithsonian American Art Mus …
4. ca. 1960-1970

WHAT

1. Drawings and Watercolors (2)
2. crayon and ballpoint pen … (1)
3. pastel, ballpoint pen and … (1)

WHERE

1. North American; American (2)

WHO

1. Smithsonian American Art … (2)
2. Yoakum, Joseph E. (2)

WHEN

1. 1886-1972 (2)
2. 1960 (2)
3. 1970 (2)
4. ca. 1960-1970 (2)