Joseph Ignatius Shanahan B.Sc., C.S.Sp., priest of the Congregation of the Holy Spirit (Spiritans), is born on June 6, 1871 in Glankeen, Borrisoleigh, County Tipperary. He serves as a bishop in Nigeria, first as prefect apostolic of Lower Niger and then as vicar apostolic of Southern Nigeria.
Shanahan joins the Holy Ghost Order in France in 1886, where his uncle Pat Walsh (Brother Adelm) had also joined the Holy Ghost Fathers. In 1889, he is transferred to the French Juniorate of the Congregation in Cellule in the Auvergne. He makes his profession on Easter Sunday 1898 and his ordination takes place on April 22, 1900 in the Blackrock College chapel.
By mid-July 1902, Shanahan has received his appointment for Nigeria to help Fr. Léon Lejeune make bricks to build the first proper mission house in Onitsha.
Shanahan is instrumental in the setting up of the Saint Patrick’s Society for the Foreign Missions, sometimes known as the Kiltegan Fathers, when in 1920, following his ordination in Maynooth as Bishop for Southern Nigeria (then a British protectorate), he appeals to students in Maynooth College for missionaries to Nigeria and Africa.
Bishop Shanahan dies at Nairobi, Kenya, on Christmas Day 1943 aged 72 years, and is initially buried in the community cemetery in St. Mary’s School in Nairobi. However, in January 1956 his remains are brought back to Nigeria for the “second burial” in the Cathedral Basilica of the Most Holy Trinity, Onitsha.
Always revered as a saint by those in close contact with him, Shanahan’s cause for Beatification is introduced officially on November 15, 1997 in Onitsha cathedral.