Martial arts enthusiast, Tim Johnson, has created a web project, dedicated to recording the histories and lineages of various martial artists. The site contains podcast interviews and web pages dedicated to world renown martial artists.
Interview with Antonio Graceffo, on Martial Arts lineage, by Tim Johnson
Martial Arts Lineage page about Antonio Graceffo, by Tim Johnson http://www.maLineage.com/martial-artists/Antonio-Graceffo
Antonio Graceffo in wikipedia