Horse and Pony Books:
THE GALLANT GRAY TROTTER
(DODD MEAD [USA] 1974)
ILLUSTRATED BY SAM SAVITT
SUMMARY: Historical horse story based on the real-life horsy heroine, Lady Suffolk, the 'Old Gray Mare' who was a record-breaking trotter in the 18th Century.
The gray mare has been abused in the past but has not lost her spirit. When she is helped by a caring young part-Indian boy, things begin to look up for her.
Easy to find in America and usually low cost. Harder to find elsewhere but buying from America should not prove too expensive, even with shipping costs.