Glen Milstein is an assistant professor of psychology at City College of New York. He studies collaboration between clergy and mental health professionals, with a focus on religion.

Ramonia Lee is minister for congregational life at Interfaith Chapel in the retirement community Leisure World in Silver Spring, Md., a member of the National Interfaith Coalition on Aging and a mentor in a national program to encourage the involvement of professionals of color with aging issues.

Read an essay by Russell D. Moore, dean of the school of theology at Southern Baptist Theological Seminary reflecting on Christopher Hitchens’ death.

Read a column by Peter Hitchens, who is a devout Anglican and apologist for Christianity. Hitchens remembers his brother Christopher and reflects on how their views on faith — and other matters — divided and united them.

The Center for Inquiry held a vigil outside Christopher Hitchens’ Washington, D.C., home on Friday, December 16, 2011, the day after Hitchens’ death.

Read a tribute for Christopher Hitchens from the American Humanist Association.

HealthCare Chaplaincy coordinates the work of chaplains of different faiths in New York health-care institutions and does research. One research project involves daughters caring for mothers with Alzheimer’s. Charysse Harper is the communications manager.

At The Daily Beast, Andrew Sullivan, a Catholic, wrote a post about his dying friend Christopher Hitchens.

Gisela Webb, who teaches religious studies at Seton Hall University, South Orange, N.J., used teachings from world religions when caring for her mother, who had Alzheimer’s, for 10 years.