Above) Barbara Woodhouse's great dane and chihuahua, in 1965. Woodhouse (1910-1988) was the dog-whisperer of her day, a famous dog trainer, author, and television personality, who once said, "I have caught more ills from people sneezing over me and giving me virus infections than from kissing dogs."

Below) Another Great Dane goin' to town with a chihuahua in a purse, perhaps the 1960s.