Nathan Hearn died Feb. 14. He was 38.

Mr. Hearn was born April 10, 1973, in Tillamook. He graduated from Sunset High School in 1991 and earned a bachelor’s degree in physics from Santa Clara University and his PhD in theoretical physics from the University of Illinois. He was married Sandra Kelly in 2005 and they lived in Longmont, Colo.

He is survived by his wife; parents, to Vern and Olivia (Reich) Hearn; sister, Charis Hearn; and brother, Joel Hearn.

A memorial service will be held at 1 p.m., Saturday, March 17, at St. Pius Church.