If you try this site out you will find your Lina's married name and (Peter Enns) who she married. This may help to locate her decendants. This is the Odessa Pixel site http://www.odessa3.org/search.html
Check out the War Records.
In the query string type in the surname or village the Data Category there is 13 things to check out click on the arrow to the right of the rectangle box.
I am not related nor am I working on the surname. I am however working on the Lutheran Parish records from 1833-1885 in the Prischib Colonies just North of Melitopol and the Eugenfeld Colonies just South of Melitopol.
Hope this helps some.