He married Edna Francis[?] on April, 1925]] and from this wedding he is the father of:
... (France) 1985 - Alain Prost, (France) 1986 - Alain Prost, (France) 1987 - Ayrton Senna, (Brazil) 1988 - Alain Prost, (France) 1989 - Ayrton Senna, (Brazil) 1990 - ...