Who was the president of the United Mine Workers of America District during the 1921 miners' march on Logan?

The president of the United Mine Workers of America District during the 1921 miners' march on Logan was indeed Frank Keeny. Keeny played a significant role in labor activism during the early 20th century, particularly in West Virginia, and was instrumental in organizing miners to fight for their rights and better working conditions.

The 1921 march, often referred to as the Battle of Blair Mountain, was a pivotal event in labor history, representing the struggle between miners and coal operators in the coalfields of West Virginia. Keeny's leadership was crucial in rallying miners to participate in this significant labor movement.

Other figures mentioned, such as John L. Lewis, were influential in the broader labor movement, but during the specific event in question, Keeny held the relevant office in District 17 of the United Mine Workers. Samuel Gompers was known for his role in the American Federation of Labor, while Harry Bridges was prominent in the maritime labor movement on the West Coast, making them less relevant to this particular historical context.