- Kai Otson was proposed by Heino Lainurm as his grandmother. However,
- Based on Mihkli church records, Heino's grandmother was Kai Lüllman.
- This raises the issue of error in Heino's memory as the douments offer a hard proof.
- Now the question is: Who was Kai Otson that Heino remembers? Lembit Maimets.