Who set the first leapfrogging record in Guinness book of world records?

Not sure who set it first, but the record was once held in 1975 by Hanover High School, Hanover New Hampshire, USA who leaped ~500 miles. This record was broken by a fraternity of a university in California who leaped ~600 miles who held it through 1988.

The Guinness book of world records for leapfrogging was broken on June 18th, 1988 and held until 1991 by a team of 14 seniors from Hanover High School in Hanover New Hampshire, USA. They leaped 888 miles in 189 hours (8 days). The individuals included Steve Bonz, Josh Cohen, Brendan Creagh, Ed McGee, Craig Keenhold, Tom Lambert, Colin MacArthur, Dayton Nordin, Dug North, Nick Orem, Adam Smith, Tim Tetrault.

The record was subsequently broken by a group of freshmen from Stanford University who jumped 1000 miles.