I am not sure if this post belong in the Ukraine or the Poland forum.
Moses David Skalka was born in Probuzna (Polish at the time) in 1872. He married Regine Sommer in Vienna in 1902, had at least two sons Leopold and Otto in 1905 and 1906, and died in Vienna in 1935. This is about all I know, as the only record I have found so far is his probate, which mentions no parents.
There are many Skalkas from Probuzna in this period, but I have yet to make any connection.