The Christian Home Educators Association of California is based in Norwalk, Calif.

The Texas Home School Coalition, a Christian-oriented advocacy group based in Lubbock, sponsors an awareness campaign in April.

Arizona Families for Home Education is a Christian-oriented advocacy group based in Chandler, Ariz.

Patrick Henry College in Purcellville, Va., was opened in 2000 by the Home School Legal Defense Association to provide higher education for Christian homeschooled students.

The National Home Education Research Institute in Salem, Ore., publishes a journal, the Home School Researcher.

Ann Zeise runs A to Z Home’s Cool, a large resource site for homeschoolers that is based in Milpitas, Calif.

Brian D. Ray is founder and president of the nonprofit National Home Education Research Institute in Salem, Ore.

Robert Kunzman is an associate professor at Indiana University (Bloomington) School of Education. He posts the Homeschooling Research & Scholarship Web site. He is the author of Write These Laws on Your Children: Inside the World of Conservative Christian Homeschooling (2009).

Milton Gaither is associate professor of education at Messiah College, a Christian liberal arts college in Grantham, Pa. He is the author of Homeschool: An American History (2008).