1994 - near Santiago, Chile - Clockwork with Mat Plendl and Enrique Gonzales Ylabaca

1994 - Clockwork at Dordt College, IA

1994 - moving across the country to Los Angeles

1994 - somewhere in Utah?

1994 - Clockwork performing "Funkytown"

1994 - with an original Charlie McCarthy and his owner, ventriloquist, Teddy Davis

1993 - Clockwork in Guatemala with singer Bethany Vahn

1993 - Jack with Penn Gillette (Penn is the one covered with blood)

1993 - London

1993 - Leeds, England

1993 - climbing Dunns River Falls in Jamaica

1993 - Jack's name in lights (long exposure with flashlight)

1993 - Clockwork shows what it takes to be a great juggling act

1993 - Clockwork's trademark flowerpots

1992 - in Montreal with Laurie Epstein

1992 - seven 7-ball jugglers: Rick Rubenstein, Eric Urhane, Jack Kalvan, Cindy Marvell, Tony Duncan, Steve Mills, Greg Borah (party at Laurie Epstein's house in NJ)

1992 - juggling at the whitehouse in Washington, DC

1991 - being artsy at the Louvre in Paris

1991 - in Cologne, Germany

1991 - climbing in the Swiss Alps

1991 - in Verona, Italy, with Marcus Marconi before the EJA public show

1991 - on Sabado Gigante, the most watched TV show in the world

1991 - an early Clockwork photo

1990 - Jack's palm rolling world record: 12,13, and14 balls

1990 - New York Juggling Club

1990 - working on 7 clubs (yes, they're Todd Smith Americans)

1990 - in Francis Brunn's studio, NYC: Dale Peterson, Francis Brunn, Cindy Marvell, Jack, Peter McLaughlin, Nathalie Enterline, Laurie Epstein

1990 - Jack designed the Clockwork logo

1989 - Jack Kalvan and Rick Rubenstein team up to form Clockwork. Their 1st big gig: 10 weeks at King's Island amusement park near Cincinnati, OH (the park provided the costumes)

1989 - Jack's first business card

1986 - 7 balls

1984 - Jack's first juggling gig: the King Mango Strut Parade - Coconut Grove, FL. (Jack on far left)

1979 - Jack's first unicycle