From the Rappaport history and the Potler-Viverette family tree (descendants of Alter Grabois):
Saul "Charles" Grabois (1842-1906) +Golda [maiden name unknown] . Abraham Grabois (to Argentina, 1896) . . 11 children . Samuel Grabois (to Argentina, 1896) . . Jose Grabois (1896-?) . . . Paulina Grabois . . . +Gregory Roth . . 5 other children . Haya (Ida) Grabois (c.1863-1931) . +Jacov (Jacob) Rappaport (c.1861-1931) (to Philadelphia, 1903) . . 8 children: see full Rappaport tree for details . Ethel Grabois . +Faiwel "Paul" Sternberg . . 6 children . Itta Grabois . +Koppel Zuckerman . . 4 children . Alter "Albert" Grabois (to Philadelphia, 1913) (1872-1927) . +"Goldie" Goldenberg (1876-?) . . Rose Grabois (1896-1991) . . +Albert Kravitz (1892-1966) . . . name unknown (died at birth) . . . Charlotte Kravitz (1919-?) . . . Ethel Kravitz (?-1999) . . . Boris Kravitz (1923-?) . . +Sam Meth (1900-1997) . . Benjamin "Boruch" Grabois (1900-1989) . . Frances "Feige" Grabois (1903-1976) . . +David Potler (1907-1980) . . . Seymour Albert "Sy" Potler (1933- ) . . . Charlotte Potler . . unknown boy (1911-1913) . . Diane "Dina" Grabois (1913-2003) . Alexander "Sender" Grabois (to Buenos Aires, Argentina, 1905) . +Reisel (Rose) [maiden name unknown]