The two Glockners are usually identified as the brothers Joseph (Sepp) and Martin Klotz, however, this surname is not listed in the Heiligenblut parish register. A local peasant named Sepp Hoysen is documented as a member of the second Grossglockner expedition in 1802, and the surveyor Ulrich Schiegg mentioned one Martin Reicher as Glockner guide. The peasants and several other members of the expedition (among them Schiegg and his young apprentice Valentin Stanič, who climbed Mt. Watzmann for the first time some weeks later) did the ascent again the next day and finally installed the summit cross and a barometer on the Grossglockner summit.