REMOVE

1. yellow
2. brown
3. blue
4. workers

WHAT

1. Visual works (hierarchy n … (2)
2. figures (2)
3. oil paint (2)

More 

WHERE

1. Killam, Alberta, Canada (1)
2. Yaddo, Saratoga Springs, … (1)

WHO

1. Still, Clyfford (2)

WHEN

1. 1929 (1)
2. 1934 (1)