[1] In 1964, Houlès met Jean-Jacques Naudet during their military service in the film department of the army in the Fort d'Ivry.
[2] Houlès sister Valerie was already living in New York and she helped find them a sublet at 54th Street and 6th Avenue in Manhattan.
[2] In the early 1980s, Houlès photographed artists Andy Warhol, Jean-Michel Basquiat and Keith Haring.
While in Paris, Houlès met South African model Josie Borain who was eighteen years his junior.
[4] In 2014, the first exhibition of his photographs since his death, Life's Too Short, was held at Myriam Bouagal Galerie in Paris.