The U.S. Census Bureau provides a summary page on marital status and living arrangements.

An August 10, 2011 report from the Brookings Institution details the growing “instability” of family life among young adult couple who have finished high school but do not have a four-year college degree.

Rabbi Elliot Dorff is a professor of philosophy and university rector at American Jewish University in Bel-Air, Calif. He is an expert in Jewish family issues, including adoption. He has studied the Jewish perspective on assisted death, transhumanism and ethics in general.

Joel Zimbelman, a California State University-Chico, religious studies professor, has written on legal decisions and public opinion informing the debate over the removal of life-sustaining treatment, assisted suicide and euthanasia.

Linda Ganzini, professor of psychiatry and medicine at Oregon Health Sciences University, surveyed 2,500 Oregon physicians and 500 hospice workers about patients’ experience of assisted suicide.

Darien Fenn, professor in the psychiatry department at Oregon Health Sciences University, has studied the attitude of Oregon psychologists toward physician-assisted suicide and the Oregon Death with Dignity Act. He can be emailed through a website contact form.

Courtney Campbell, Oregon State University philosophy professor, has focused on the Latter-day Saints and medical ethics, as well as hospice and assisted suicide. He has authored numerous articles on the controversial Oregon Death with Dignity Act and on the Oregon Health Plan.

Daniel Dombrowski is a professor of philosophy at Seattle University. He is the co-author of A Brief, Liberal, Catholic Defense of Abortion (University of Illinois Press, 2006).

Anne Hendershott is a professor of psychology, sociology and social work at Franciscan University of Steubenville in Ohio. She is the author of The Politics of Abortion (Encounter Books, 2006).