MULLEN, Tobias, R. C. bishop, born in County Tyrone, Ireland, in 1818. After a preparatory course in classics in Castlefin school, he was entered at Maynooth college, where he studied theology and received minor orders. He came to the United States with Bishop O'Connor of Pittsburg, in 1843, finished his theological studies, and was ordained priest, 1 September, 1844. After holding various charges he was transferred to the rectorship of St. Peter's, Alleghany, Pennsylvania, in 1854, and in 1864 he was appointed vicar-general of the diocese. He was consecrated bishop of Erie, 2 August, 1868. During the administration of Bishop Mullen the Roman Catholic population has increased from 30,000 to about 60,000, and the churches from 55 to 99. The number of priests has risen from 35 to 73. Under his auspices a college was built at Northwest, and is conducted by the congregation of the Most Holy Redeemer. Academies for young ladies were also built and given in charge of the Benedictine nuns and Sisters of St. Joseph, and there are fifty-eight parochial schools.