He was the best man of Henri Betti in 1949 and André Hornez in 1963 who were the authors of C'est si bon. Coquatrix was buried in the Père Lachaise Cemetery (division 96).
He served as a best man for Henri Betti's wedding in 1949 and André Hornez's wedding in 1963, both of whom were authors of the book C'est si bon. Coquatrix is buried at Père Lachaise Cemetery (division 96).