Sr. Chioma Ahanihu takes notes March 27, 2025, in Mexico City at the start of a gathering for sisters involved in data collection. In this undated photo, Living Word Sr. Chioma Ahanihu poses with her newly published book Religious Women as Global Migrants to the United States. (Courtesy of Sr. Chioma Ahanihu)"How can these communities sustain themselves amid the ongoing decline in membership? In this photo from 2000, Sr. Chioma Ahanihu professes her first vows with the Missionary Sisters of the Holy Rosary in Enugu, Nigeria. Sr. Chioma Ahanihu poses for a photo March 27, 2025, in Mexico City at the start of a gathering for sisters involved in data collection.