I am wondering what Hommon, Russia before WW1 is called today, or if it even
exists any more.

Researching: Goodman/Guttman, Bukovina, Lachs/Lax in
Bukovina and Galacia, Katkin and Levinson: Minsk,Slutsk, Belarus; Vilnius,
Lithuania; Ekaterinoslav(Dnipropetrovsk), Ukraine
Bruce Katkin