Sisters Maureen Courtney and Teresa de Jeus Rosales died during an ambush in Ojo de Agua, Nicaragua.
Three Sisters of St. Agnes were murdered in Nicaragua between 1990 and 1995. In memory of their ministry and as a witness to nonviolence, a project evolved to fund and design plaques. The prototype project of nonviolence and peace-making was completed in April 2013. The administration of Divine Savior High School, Milwaukee, was contacted for a list of classmates of Sister Maureen Courtney. Letters were written to her classmates in which the project was described and donations were requested. The administration graciously mailed a letter to her classmates. Donations were received to fund the plaque project.
A plaque in memory of Sister Maureen Courtney was designed for Divine Savior Holy Angels High School and is displayed in their Religion Department. A plaque was designed in memory of the three Sisters who were murdered: Maureen Courtney, Teresa de Jesus Rosales, and Jenny Flor Altamirano. A plaque with the photos of the three Sisters is displayed in Founders Hall at St. Agnes Convent and a second plaque at Nazareth Court, both in Fond du Lac, Wisconsin.
A plaque in memory of Sister Maureen is displayed at her home parish, St. Margaret Mary, Milwaukee, Wisconsin. The parish council of St. Margaret Mary contributed for the plaque. Supplemental funding was donated to the Maureen Courtney School for disabled children in Puerto Cabezas, Nicaragua.
Plaques in memory of the three Sisters were designed in Nicaragua and are displayed at Casa Santa Ines in Managua and Ojo de Agua, the site of the ambush.