I've got several old records for this family, all births for children of Johannes and Anna Gerdruth. They all seem to explicitly state that Johannes was present at the birth.
The fact that they all say this leads me to think this isn't common for the time, is that true? Given that he was a shepherd, I wonder if it was possibly the distance to help that would have necessitated it.
6./ d(en) 26 ten ejus(dem) Johannes, des Schäfers Johannei Zaun et ux. Anna Gerdruth ge. Rüppel ehel. Söhl. nat. den 19ten ej. Morgens um 1 Uhr Die Ge- vatterstelle vertrat derVater selbst