"What word of ten letters can be spelt with five?  Expediency— X-P-D-N-C."  From The Children's Newspaper, 1919.

From Our Dumb Animals, 1920.  Answers: carp, mole, puma, doe, hog, coon, boars(?), cat. 

From The Children's Newspaper, 1927.

From Our Dumb Animals, 1935.  Answers: goat, camel, rabbit, kitten, buffalo, tapir, pony, ass, unicorn.

From The Children's Newspaper, 1936.  Answer: Constant dropping water wears away the stone.

From The Children's Newspaper, 1963.  Answer: Marlborough.

31 animal names.  From the Massachusetts Society for the Prevention of Cruelty to Animals' Our Dumb Animals, 1938.

From Wee Wisdom, 1924.

From The Children's Newspaper, 1955.  Answers: heron, horse, hedgehog, haster, hound, hornet, mole, mouse, magpie, midge, marten, mare.

From the Massachusetts Society for the Prevention of Cruelty to Animals' Our Dumb Animals, 1939.

From The Children's Newspaper, 1963.  Answer: Chestnut.

From the Massachusetts Society for the Prevention of Cruelty to Animals' Our Dumb Animals, 1920. 

Answers - PACA, SLOTH, PUMA, STAG, CAT, MARTEN, with ALPACA in 1-2 and COUGAR in 3-4.

From Wee Wisdom, 1941. 

Answers: cow, crow, dove, hawk, loon, oriel, owl, robin, wren.

From The Children's Newspaper, 1927.

Answers: SHOT, SOOT, BOOT, BOOK.  

From The Children's Newspaper, 1927.

From Wee Wisdom, 1932.

From Youth's Companion, 1894.

From The Children's Newspaper, 1940.  Answer: add a h to ear to make hare, then rearrange hare to hear and a t to make heart.

From The Children's Newspaper, 1940.

From The Children's Newspaper, 1928.

Answers: LONE, LANE, LAME, LAMP, LUMP.