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]