Julia Teresa Tallon was born at a farm in upstate New York 1867 as the seventh of the eight children to the Irish immigrants Peter Tallon and Bridget Duffy. After the death of her first husband, Peter Tallon, she married John Bogan. Her siblings were:
William Tallon
Ellen Tallon
Elizabeth Tallon
Alice Cecilia Dunn – married Patrick Dunn and had one child James B. Dunn
Mary Bloomfield – married David A. Bloomfield
From 1879 she felt a strong call to enter the religious life as a sister despite the protests of her mother and siblings who did not approve of her decision. Her mother in particular – despite her deep faith – did not approve of her daughter's decision though was powerless to prevent this from materializing. Regardless of their opinion she joined the Holy Cross Sisters on 30 April 1887 and resided with the order at their convent until 1920 after the conclusion of World War I. Tallon founded the Parish Visitors of Mary Immaculate in New York on 15 August 1920 – an order that now operates in Nigeria and the Philippines. Tallon suffered from disabling illnesses in the final two decades of her life and she hid the fact that she was sick though a few of her colleagues knew of this. On 10 February 1954 she was critically ill after suffering a fall in her room and spent the next month in pain. She died on the evening of 10 March 1954 just as her fellow Sisters concluded the recitation of the rosary at her bedside. Her remains were exhumed for canonical inspection and transferred on 16 October 2015 and then relocated for the final time on 9 December 2015.
Beatification cause
The beatification process opened in the Archdiocese of New York on 20 February 2013 under Pope Benedict XVI after the Congregation for the Causes of Saints issued the official "nihil obstat" to the cause and titled her as a Servant of God; news of this was given to the archdiocese on 28 February 2013. The diocesan process opened on 16 April 2013 and concluded on 13 January 2015 in which Cardinal Timothy Dolan both inaugurated and concluded the process. The C.C.S. received all the boxes of documentation on 22 January 2015 and validated the process on 29 April 2016. The postulator assigned to the cause is Dr. Waldery Hilgeman and the vice-postulator is Sister Maria Catherine.