Conversation so far:
What was Arthurdale in relation to Elanor Roosevelt?
Eleanor Roosevelt's chief project during her husband's first two terms was the establishment of a planned community in Arthurdale, West Virginia.
What is a planned community?
A planned community, planned city, or planned town is any community that was carefully planned from its inception and is typically constructed on previously undeveloped land.
Where is Arthurdale located?
Arthurdale is located in West Virginia.
Why did the miners in Morgantown, West Virginia need a resettlement community?
On August 18, 1933, at Hickok's urging, Eleanor Roosevelt visited the families of homeless miners in Morgantown, West Virginia, who had been blacklisted following union activities.

Question: why were they blacklisted?
Self-contained rewrite: Why were the miners in Morgantwon blacklisted?