Before there were LOLCATS
There was Harry Whittier Frees
Harry Whittier Frees (1879–1953) was an American photographer who created novelty postcards, magazine spreads, and children's books based on his photographs of posed animals. He dressed the animals and posed them in human situations with props, often with captions; these can be seen as progenitors of modern lolcats. ~Wikipedia
Mr. Frees attributes his success to kindly treatment of his models and a sixth sense about animals. He makes exposures at 1/5th of a second, has to junk two-thirds of his negatives,” claimed a profile of the photographer in LIFE in 1937. Frees admitted to using very stiff clothing as well as needles and forks to hold his subjects in place. Besides his own — by his account, brilliant and obedient — cat, Rags, Frees borrowed animals from neighbors, friends, and pet shops, using pigs, chickens, dogs, and rabbits at various points in his career. Cats, however, were his favorite models. He preferred to use kittens less than three months old, as they were more easily posed and photographed.
He never married, caring for his parents for much of his life and shooting whimsical animal scenes for three months out of the year (due to the stress). After the success of Frees’s postcards, he began to publish books and magazine spreads with his work, making progressively elaborate costumes and scenes. His photographs appeared in Little Folks, Women’s World, and American Magazine, and, in 1935-36, Frees published several spreads in Child Life, the Post’s sister magazine for kids.
His books, like Little Folks of Animal Land, Animal Land On the Air, and The Puppy and Pussy Book among others, were reprinted into the 1990s, while Frees himself remained relatively unknown. After his parents died, Frees moved to Clearwater, Florida, and, in 1953, he committed suicide after receiving a cancer diagnosis. His obituary stated that he turned on the gas stove in his kitchen due to an incurable disease, but it made no mention of his prolific photography career that brought delight to millions and, perhaps, launched an American obsession with documenting every possible angle of our precious felines. - Saturday Evening Post
See photo sources and a collection of Whittier’s photos at Library of Congress
Apparently this was before the SPCA too.