“Beetle Bailey” comic strip artist Mort Walker died Saturday at age 94, his family said. According to his oldest son, Greg, who partnered with his father on that venerable cartoon take on the military life, the elder Walker died of old age at his home in Stanford, Conn. Walker was part of more than a half-dozen comic strips in his career, including "Hi and Lois," ''Boner's Ark" and "Sam & Silo." But his greatest success came from Beetle, his hot-tempered sergeant and the rest of the gang at fictional Camp Swampy, which he drew for nearly 70 years. After an...