Completed in December 1909, this chapel was erected for and by a small colony of Italian, Bavarian, and English Catholic families who had come at the call of Indiana industrial baron Harvey M. Lafollette to labor on the railroad, dig coal, and operate coke ovens. Lafollette, who renamed Big Creek Gap, donated the land and contributed to the cost of construction. The site, on the brow of a hill one square beyond Lafollette's Glen Oaks residence, was chosen for a structure originally measuring 22 feet by 50 feet and designed by Fr. Emmanuel Francis Callahan, a young second-generation Irish-American priest born in 1871. A Knoxville native assigned to 34 East Tennessee counties, Callahan preferred traveling on horseback and also worked with a hammer alongside the men of the Lafollette Mission. Although first planned as a frame or brick building depending on funding, the chapel was ultimately built of stone donated by the L&N railroad and cut and fitted by skilled local stonemasons, a rarity among missions of the period that likely helped ensure its longevity. In a July 29, 1909 letter to his bishop, Callahan wrote that the chapel at Lafollette was of blue limestone, of his own design and plans, and the first stone building he had ever assembled, adding that he believed it would be a little Gothic gem of a chapel. The building features matching windows shaped like the Greek letters I, O, and A, referring to “I am the alpha and omega, the beginning and the end,” as well as a large triangular window at one end; originally all were stained glass. The triangular window, depicting Christ in the Garden of Gethsemane, was donated by Angelo Anthony Dusini, a public-spirited immigrant coal miner from Vestoria, Italy, who lived in Lafollette for 36 years until his death in 1941. In 1994, the Dusini window was incorporated into the larger Our Lady of Perpetual Help Catholic church a short distance east of this site. An anteroom was added at the right end in 1950, and except for that and minor interior renovations, the chapel remains true to its 1909 design.