From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – February 3, 1901
From Isidore Guerin to her daugther to Marie Guerin (sr Marie of the Eucharist) - February 4, 1901
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - February 5, 1901
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - February 12, 1901
From Isidore Guerin to her daugther to Marie Guerin (sr Marie of the Eucharist) - February 13, 1901
From sr Marie of the Eucharist (Marie Guerin) to sr Marie-Joseph of the Cross – February 17, 1901
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – February 18, 1901
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - March 5, 1901
From Isidore Guerin to her daugther to Marie Guerin (sr Marie of the Eucharist) - March 11, 1901
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - March 26, 1901
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - April 3, 1901
From sr Francoise-Therese (Leonie) to her three sisters in the Carmel - April 9, 1901
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – May 8, 1901
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – May 20, 1901
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – June 7, 1901
From Isidore Guerin to Mother Marie de Gonzague – September 11, 1901
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – November 1, 1901
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – November 4, 1901
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - November 19, 1901
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – November 21, 1901
From sr Marie of the Eucharist (Marie Guerin) to sr Marie-Joseph of the Cross – November 27, 1901
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - December 11, 1901
From sr Marie of the Eucharist (Marie Guerin) to Mrs Pottier – December 31, 1901
From sr Marie of the Eucharist (Marie Guerin) to Jeanne (Guerin) La Neele - December 31, 1901
From sr Marie of the Eucharist (Marie Guerin) to her father Isidore Guerin - December 31, 1901