I believe you are seeking Slutsk (aka Sluki).
We have a group researching Jalowka, which I visited in 2006. Please email me directly for an intro to our group.
Miami Lakes, FL
GRODINSKY/GORDON/GRODY from (Jalowka & Leonovicze, Grodno Gubernia - Poland/Belarus)
KAPLINSKY from Grodno Gubernia (Poland/Belarus)
PARANSKY and HECHT from Ruzhin (Kiev Gubernia)
KUTSOVSKY/KATZOWSKY from Peryaslav, Ukraine
SACHAROV/SACHAROW from Poltava, Ukraine
COOPER/COOPPER from Poland
GOLDENBERG/GOLDBERG from Iasi, Romania
GELTZER from Iasi, Romania
ROSENWASSER/ROSENBESSER and ROSENBERG from Ukraine
TOLCHINSKY from Poland and Ukraine