From Isidore Guerin to Mother Agnes Agnes of Jesus - 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin and her sister Jeanne (Guerin) La Neele – January 5, 1904
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – January 7, 1904
From sr Francoise-Therese (Leonie) to Mother Agnes of Jesus – January 18, 1904
From Isidore Guerin to her daugther to Marie Guerin (sr Marie of the Eucharist) - February 12, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - February 13, 1904
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – February 14, 1904
From sr Marie of the Eucharist (Marie Guerin) to Jeanne (Guerin) La Neele - March 2, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - March 6, 1904
From sr Marie of the Sacred Heart to Isidore Guérin – April 3, 1904
From sr Genevieve (Celine) to Isidore Guerin – April 3, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - April 3, 1904
From Mother Agnes of Jesus to sr Francoise-Therese (Leonie) - April 6, 1904
From sr Marie of the Eucharist (Marie Guerin) to Jeanne (Guerin) La Neele - May 2, 1904
From Isidore Guerin to her daugther to Marie Guerin (sr Marie of the Eucharist) - May 6, 1904
From sr Genevieve (Celine) to sr Francoise-Therese (Leonie) - May 31, 1904
From sr Marie of the Eucharist (Marie Guerin) to her family –June 9, 1904
From sr Marie of the Eucharist (Marie Guerin) to Jeanne (Guerin) La Neele - June 19, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - June 21, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - June 28, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - July 1904?
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - July 6, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - July 14, 1904
From Isidore Guerin to her daugther to Marie Guerin (sr Marie of the Eucharist) - July 19, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - July 29, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - August 1904?
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - August 12, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - August 13, 1904
From sr Francoise-Therese (Leonie) to Marie Guerin (Sr Marie of the Eucharist) – August 14, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - August 25, 1904
From Isidore Guerin to her daugther to Marie Guerin (sr Marie of the Eucharist) - September 16, 1904
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – October 9, 1904
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – November 24, 1904
From sr Genevieve (Celine) to Isidore Guerin – December 30, 1904
From sr Genevieve (Celine) to sr Francoise-Therese (Leonie) - December 30, 1904
From sr Marie of the Sacred Heart to Isidore Guérin – December 31, 1904
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin and her sister Jeanne (Guerin) La Neele – December 31, 1904