Historical series set in Ireland and America in the 19th century. Oddly, the reading order is different to the publishing order, suggesting that one book was possibly written as a prequel to the other.
1) KEEPERS OF THE BELL
FIRST EDITION JOHN DAY & CO.[USA] 1961
Reprinted in hardback by Hale.
SUMMARY: Set in Ireland. Two Irish boys Conal and Kevin buy the rogue stallion Ahaygar, hoping to tame him using the old gentle method of horse-taming passed on down their family
2) WILD IMP
FIRST EDITION JOHN DAY & CO.[USA] 1960
SUMMARY: When the Irish boy Conal arrives in Texas he sets out to prove that taming horses by his gentle method is preferable to the usual rancher's way of trying to break their spirit. Will his methods work on the wild black stallion?
Fairly easy to find in the USA, although mainly library copies. Hard to find elsewhere.