John W Chambers (1933 - ) has written several children’s books, which vary from adventure stories ( Fire Island Forfeit)to Siamese cats (Fritzi’s Winter). He has written, as far as I am aware, one horse book, The Colonel and Me. Its heroine, Gussie, loathes the idea of learning to ride.
Finding the book:this book is easy to find in the USA. It was not printed in the UK.
Links and sources
Terri A. Wear: Horse Stories, an Annotated Bibliography, Scarecrow Press, 1987
National Library of Congress
Bibliography - horse books only
The Colonel and Me
Atheneum, New York, 1985, 190 pp
Colonel Meslenko is a Tartar, and Gussie hates both him and the fact he is teaching her to ride. This was not how she had seen the summer go at all - she had planned a lazy summer on the beach and reading, and not having to learn to ride.