George Agnew Chamberlain (1879-1966)

American author of mostly adult novels, mainly thrillers and romances. Born in Brazil in 1879 although he had American parents and was brought up and studied in the USA. He travelled widely and was for a time deputy American consul for Rio de Janeiro.

In his thirties he began writing articles, serials and then novels which included comedies, thrillers and romances. Two of his novels also included a horse element (harness racing) and were aimed at a young adult readership. He also wrote an adult  romance with a mule theme.

Many of his books were made into popular films, including two of the books below. Phantom Filly was adapted for the big screen twice, both times under different titles.
Scudda Hoo Scudda Hay was also made into a film which has now achieved notoriety mainly as the (very short) screen debut of Marilyn Monroe!

Horse & Pony Books:

THE PHANTOM FILLY
(BOBBS MERRILL [USA] 1942)
Reprinted in paperback.
This was made into a film in 1944 and also in 1957 as a musical!
SUMMARY: Romance with a harness racing theme. A city bred young man goes to stay on his uncle's farm where once were bred trotters. Here he learns to love horses and wants to raise and train a trotter of his own. A romance with a local girl also ensues.

SCUDDA HOO! SCUDDA HAY!
(BOBBS MERRILL [USA] 1946)
Made into a film in 1948
SUMMARY: A humourous romance about a young farm hand who attempts to train his employer's mules and woo his employer's daughter at the same time.

LORD BUFF AND THE SILVER STAR
(BARNES [USA] 1955)
ILLUSTRATED BY WESLEY DENNIS
SUMMARY: The story of a boy and girl, a dog and a harness racer.

Collector's Info:
The Phantom Filly and Lord Buff are reasonably easily found in the USA. Scudda Hoo is a lot rarer and may be expensive. All of them may be very hard to find outside of America.