Alphonse Septimus ‘Phonsie’ O’Brien was born in 1929, and died in 2016.
He was an Irish jockey and racehorse trainer.
He was the brother of racehorse trainer Vincent O’Brien and had a riding career in the 1940s which he followed by taking a license to train horse in 1956.
Phonsie O’Brien was based in stables at Carrick-on-Suir and later at Cashel.
Phonsie O’Brien trained the winner of the Galway Plate four times in succession from 1962 to 1965 and was credited with Chamour’s victory in the 1960 Irish Derby.
He was the trainer of Chamour but was suspended from training after the horse failed a drugs test.
He took over the training license while his brother was suspended.
He died at his home near Kilsheelan.
Phonsie O’Brien passed away at 86 years old.