Zhitomir name

Dear Genners, I've been searching for my maternal ggm's maiden name for decades, with no results. She was known in the family as Riva the Booba (meaning midwife). She married my ggf Yishea/Ovshiy Berensohn and they then lived in Krasnoye, Podolia Gubernia, Their son, my gf Shmuel/Sam Berenson was born there in 1880. I know she delivered Harry Loigman(1892), Ida Loigman (1893), and Victor Loigman (1904) in Krasnoye. There was a large group in Philadelphia, the Gershmans, who attended all our family functions. I never knew how we were related. They came from Zhitomir and the farthest back I've gotten was Leib Gershman. In Pennsylvania, my aunt Rive/Rebecca Berenson was born in 1915, so I assume she was named after my ggm Riva -- who presumably died between 1905 (when an older sibling was born) and my aunt's birth. Does anyone who is researching Zhitomir find any of this familiar?
Many thanks, Molly Arost Staub 

Searching
BERENSON (Krasnoye, Ukraine)
GROFFMAN/GRAFFMAN (Ukraine)
AROST/HARAST/JAROST (Bessarabia)
SHTOFMAN (Bessarabia)

Molly Arost Staub

Boca Raton, FL

Molly Staub

E-mail staubmolly@...