REMOVE

1. roads
2. automobiles
3. trees
4. cows (animals)

WHAT

1. autumn (2)
2. barns (1)
3. bridges (built works) (1)
4. Chevrolet Corvair automob … (1)
5. color film (film) (3)
6. exterior views (1)
7. farmhouses (1)
8. farms (2)
9. fences (1)
10. fields (land) (2)
11. flower (plant material) (1)
12. goats (animals) (1)
13. houses (1)
14. interior views (1)
15. Jaguar Mark series automo … (1)
16. landscapes (representatio … (2)
17. Lincoln Continental autom … (2)
18. paintings (visual works) (1)
19. portraits (2)
20. snow (precipitation) (2)
21. spring (season) (1)
22. stained glass (material) (1)
23. streams (riverine bodies … (2)
24. Visual Works (hierarchy n … (3)
25. winter (1)

WHERE

1. Westminster, Maryland (2)
2. Carroll County, Maryland (1)
3. Maryland Route 407 (state … (1)
4. New Windsor, Maryland (1)
5. Sam's Creek Road, Carroll … (1)

More 

WHO

1. Still, Patricia (3)
2. Still, Clyfford (1)

WHEN

1. 1966 (2)
2. 1970 (1)
3. circa 1970 August (1)