 Lomen went to law school at the University of Washington.Upon graduation, she went to Washington, D.C. to clerk for Supreme Court Justice William O. Douglas (himself a Whitman alum) for the 1944–1945 term.After her time at the Supreme Court, Lomen turned down a position in the U.S. Department of Justice in favor of her home state of Washington as assistant attorney general, where she served for three years.