ok, found a couple more documents, the transcriptions done for them maintain Kiakionnas for the second one in July, but looking at the original (linked on profile) it appears closer to Chicaohas or Chicachas (ink has spread). The first one in June reads Chicacha in transcription, the original is hard to make out but appears to read Chikaohas or Chikachas.
He is named Pichiou / Pichou on some of these records