Mother De Sales in 1905 describes Sr. Catherine going to a local prison in Puerto Rico to minister to an inmate there.  She performed the fuction due to her advanced Spanish and ability to communicate with the inmate.

Mother Demetrias's letter to Mother Joseph describing conditions and events in Aquadilla, Puerto Rico shortly after her arival there in July 1905.

In this August 3, 1905 letter to Mother Joseph, Mother Demetrias gives her eye-witness account of a riot which erupted in San Juan.

In this 1905 report to Mother Joseph about the mission in Aquadilla, Mother Demetrias describes the condition of their house there as well as their methods in countering Protestant missionaries.

Mother Demetrias writes a report to Mother Joseph about the Mission Helpers' activities in Puerto Rico on September 20, 1905.

This 1910 article by Mother Demetrias describes the early work and conditions of the Mission Helpers in Puerto Rico, including their physical struggles, as well as their efforts to counter the preaching of Protestants and Spiritualists.