Leonard Martin Campbell, who died in Denver on Sunday at age 88, was widely lionized in both legal and civic circles as a courtly lawyer who became a mentor for a galaxy of influential attorneys, including former Gov. Roy Romer and CBS legal analyst Andrew Cohen. Born April 12, 1918, in Denver, Campbell was orphaned in childhood, along with his brother. He attended the University of Colorado as an undergraduate and then a law student, completing his bachelor's degree and law degree in four years and simultaneously holding down a job to pay for his tuition. After passing the bar exam, he joined John Gorsuch and Fred Kirgis at their small law practice. Shortly afterward, he became a partner at the firm, where he remained for nearly 60 years. Colleagues credit Campbell with helping nurture Gorsuch Kirgis Campbell Walker and Grover into a practice with nearly 100 lawyers and a reputation, as legal analyst and Gorsuch Kirgis alumnus Cohen put it, "for being one of the more humane places to practice law in town." "These men built and maintained a partnership that started before the Cold War began and ended only after mankind began to explore the surface of Mars," Cohen wrote in The Denver Post shortly before the firm closed last year.