In the Yatzachi Zapotec translation of the Gospel of John, any reference to the evangelist and presumed narrator is done in the first person.
The translator Inez Butler explains (in: Notes on Translation, September 1967, pp. 10ff.):
“In revising the Gospel of John in Yatzachi Zapotec we realized from the start that the third person references of Jesus to himself as Son of Man had to be converted into first person references, but only more recently have we decided that similar change is necessary in John’s references to himself as ‘the disciple whom Jesus loved.’ As I worked on those changes and questioned the informant about his understanding of other passages in the Gospel, I discovered that the reader misses the whole focus of the book as an eyewitness account unless every reference to the disciples indicates the writer’s membership in the group. In view of that we went back through the entire book looking for ways to cue in the reader to the fact that John was an eyewitness and a participant in a many of the events, as well as the historian.
“When the disciples were participants in events along with Jesus, it was necessary to make explicit the fact that they accompanied him, although in the source language that is left implicit, since otherwise our rendering would imply that they were not present.”
In this verse, the Yatzachi Zapotec says: “Then we looked at one another wondering about whom he said that.”