In 1958 the farm was acquired by prominent French
horseman Alec Head, a descendant of the trainers who founded the
English Racing Colony in
Chantilly, Oise. Alec Head undertook a massive restoration of the facilities and in 1959 brought in the farm's first stallion. Over the years he and his wife Ghislaine developed Haras du Quesnay into one of the leading stud farms in the country with horses acquired from across Europe and the United States. Ghislaine and Alec Head's children have been distinguished participants in the horse racing industry. Daughter Martine was involved with managing the farm until its closure in November 2022, son
Freddy has been the champion jockey six times in France and a trainer most notably of
Goldikova, and daughter
Criquette Head is one of France's leading trainers and the most successful female Thoroughbred trainer in the world. ==Notable stallions==