The full Tertön Gyatsa text can be found at the following page: Volume 1 (ཀ), 341-765, 1a1-213a4.
Name in Gyatsa: ལོ་ཆེན་སྐ་བ་དཔལ་བརྩེགས་ (lo chen ska ba dpal brtsegs)
Page #s for bio of this person: 389 to 390
Folio #s for bio of this person: 25a3 to 25b1