David Tebele Chajes

In Volume 4, Chapter 11, page 259, the entry for G15 David Tebele Chajes lists him as possibly being a grandson of Meir Chajes having an unknown father, however, there is a footnote indicating that the exact link is unknown and that David Tebele Chajes may have been a son of Meir Chajes, and a brother to R' Zvi Hirsch Chajes of Zokiew.

Source

The Unbroken Chain - Neil Rosenstein (3rd Edition) Volume 4, Chapter 11, page 259