Final answer:
President Lyndon B. Johnson's beagles were named Him and Her.
Step-by-step explanation:
President Lyndon B. Johnson's beagles were named Him and Her. These two beagles were a popular presence at the White House during Johnson's presidency. They were often photographed with the president and his family, and were even featured on the cover of Life magazine. The beagles became well-known and beloved by the public.