(from Detroit News)
To do battle with Pingree, the traction interests brought to Detroit Tom L. Johnson, who reputedly possessed the most resourceful brain in their industry. Johnson came to admire Pingree so much that when he returned to Cleveland he ran for mayor and campaigned for 3-cent fares in the Pingree style.
“Some day Hazen S. Pingree will be remembered and recognized as one of the foremost leaders in our era of national awakening,” was Johnson’s assessment of his old foe. – Detroit News
Hazan Pingree was one of Tom L. Johnson’s mentors along with Henry George and Samuel Jones. Johnson learned about how to run a 3¢ trolley line under Pingree.
Link is here