CONNELLSVILLE, a city of Fayette county, Pa., U.S.A., on the Youghiogheny river, 6om. S.S.E. of Pittsburgh. It is on Federal highway 119, and is served by the Baltimore and Ohio, the Pennsylvania, the Pittsburgh and Lake Erie and the Western Maryland railways. The population in 1920 was 13,804; 1930 it was 13,290. The city is the centre of the Connellsville coal field which is famous for the coking qualities of its coal. The pro duction of the entire district has ranged from 6 to 18 million tons of coke (one-sixth to one-third of the entire output of the coun try) ; before the development of the by-product process it some times amounted to 5o% of the total. The city also manufactures coking and mining machinery, mine pumps, safes, iron, electrical steel, fire glass, paving brick, flour, lumber, candy and other prod ucts. Connellsville was settled in 177o and was laid out in by Zachariah Connell.