It is known that the poster is no longer alive. In case, anyone else is interested, this seems to be some of the information that she is seeking.
From what her father told me in 2007, that her great-grandfather's name was Joseph ZIONTS, this profile that she is seeking does not seem to be of her grandfather as here Moses's father is Rivan (I guess Reuven):-
District of Columbia Deaths and Burials, 1840-1964
MyHeritage.com [online database], MyHeritage Ltd.
Country: USA; State: District of Columbia; Folder: 4025324; Film: 2116026; Image: 509
Wife: Esther F. Zaontz
Birth: Dec 8 1867 - Warsaw, Poland
Death: May 31 1926 - District Of Columbia
Burial: June 1 1926
Father: Rivan Zaontz
Ma'aleh Adumim, Israel