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This is the photo used in the family's 2016 holiday card.

A Go Fund Me account has been set up for the 4-year-old son of Adam Clausen and Shannon O'Leary, who were killed Monday evening in a car crash on U.S. 26.

Money raised in the campaign for their child, Felix, will be used to pay for his support and future education, says the Go Fund Me site.

"Their son is with family where he is receiving the best love and support possible," a family friend, Becky Boyd of Bend, said in an email.

Clausen, 37, and O'Leary, 39, were returning to Portland from Bend when the crash happened.

From the Go Fund Me site:

Shannon O'Leary was a physics professor at Lewis and Clark College, where she loved teaching and was a strong proponent of women in the sciences. Adam, also a physics professor for eight years, was a consultant at Kolisch Hartwell in Portland. They were married 2009. In addition to their son, Felix, the couple leaves behind an enormous, loving group of friends from various colleges where they taught and attended school in pursuit of their degrees, including the University of Puget Sound, the University of Oregon, Lawrence University, the University of Portland and Lewis and Clark. They also leave behind family, struggling to move forward in the absence of such bright and beautiful souls.

They were adventurous, intelligent, kind, loving and beloved and we miss them tremendously.

Oregon State Police have said a westbound 2007 Chevrolet Malibu driven by Nathan Verhaeghe, 31, of Spokane, Washington, hit the rear of Clausen's Matrix, pushing the Matrix into the eastbound lane where it collided with a Chrysler van driven by Robert Burke, 34, of Reno, Nevada, who was killed in the collision.

Rachel Burke, 29, of Reno, a passenger in Burke's vehicle, was taken to St. Charles Medical along with their 22-month-old son. Verhaeghe also was taken to St. Charles Medical Center.

Oregon State Police have said their investigation is continuing.

-- Allan Brettman