EVASIVE ACTION TURN TO AVOID PARACHUTE JUMPING ACTIVITY.

Narrative

I RECEIVED A WX AND NOTAMS BRIEFING FROM BRIDGEPORT FSS. AS IT WAS A HOLIDAY WEEKEND; I WAS PARTICULARLY CONCERNED WITH NOTAMS WHICH COULD AFFECT THE RTE OF FLT. THE BRIEFER WAS GOOD AND COURTEOUS AND; WITH HIS RECOMMENDATIONS; I DECIDED TO FLY FROM DANBURY; CT (DXR) W OVER THE DELAWARE WATER GAP. THE BRIEFER INFORMED ME OF PARACHUTE JUMPING IN THE VICINITY OF THE SPARTA VOR AND THAT THE W POINT EXCLUSION AREA WAS ACTIVE. I PLANNED MY RTE ACCORDINGLY. ON THE RETURN TRIP (EBOUND AT 3500 FT) VFR; I WAS MONITORING STEWART TWR (SWF) AND STAYING HIGH ENOUGH TO AVOID STEWART CLASS D AIRSPACE. WHILE APCHING AND JUST TO THE N OF ORANGE COUNTY (MGJ) MY WIFE; SPOTTED PARACHUTES ABOUT A HALF MI IN FRONT OF US. ALTS VARIED FROM THE SAME AS OURS TO APPROX 5000 FT. I IMMEDIATELY EXECUTED A R TURN AND CLRED THE JUMPERS BY ABOUT 1000 FT. I AM CONCERNED THAT THE JUMPERS MAY NOT HAVE FILED A JUMP PLAN AND THEREFORE I WAS NOT AWARE OF THE JUMP ACTIVITY. IF I HAD KNOWN; I WOULD HAVE BEEN ON THE ORANGE COUNTY CTAF INSTEAD OF ON THE STEWART FREQ.