He entered the
Holy Ghost Fathers and his ordination took place on 16 June 1929. His ministry in east Nigeria began in 1933, where he remained for 20 years.
Bishop of Freetown and Bo He arrived in Freetown in 1953 to succeed Archbishop Ambrose Kelly, who had died the previous year. He was appointed Bishop of Freetown and Bo and began his ministry in Sierra Leone. The main focus of his work was education and he made tremendous progress in this area. He founded
Christ the King College in Bo in the year of his arrival. On 9 April 1961, he performed the first ordination of a diocesan priest,
Joseph Ganda, at the Immaculate Heart Church in
Bo. He was a council father in Sessions 1 to 4 of the
Second Vatican Council.
First archbishop of Freetown and Bo Brosnahan became the first Archbishop of
Freetown and Bo, in 1971. From 1971 to 1975, he was president of the
Inter-territorial Catholic Bishops' Conference of The Gambia and Sierra Leone. In 1975, he erected the Archdiocesan Secretariat Santanno House on Howe Street. He retired in 1980 and was succeeded by
Joseph Ganda. == Legacy ==