Frederick Crocker of Titusville drilled a well near the village of Bradford in 1875, and thus began the rush to Bradford. By 1881 the famous Bradford field had reached its peak, about 100,000 barrels of oil a day. Bradford was producing nearly 83% of all the crude in the US. In 1837 the US Land Company owned a quarter of a million acres of land in McKean and adjoining counties. Colonel Levitt C. Little located in McKean on Tuna Creek. Others came and Littletown was founded, which in 1858 was named Bradford. Bradford had a population of five - six hundred in 1875.
Trainloads of oilmen came and the hotels filled up and the Main Street blazed with music and dance.
The population of Bradford increased to 4,000 by 1878. The Bradford House became a meeeting place for the oilmen. Railroad traffic was tremendous. Two locomotives were engaged night and day to switch cars and as many as 250 cars were loaded on the tracks. Bradford was the oil metropolis of the world in 1880.