This is kind of a long-shot, but you may want to explore the Ellis Island data base, in case any other relatives with those names went on to the USA. You can look at the data base free, only need to register. This web link is the best way to search, as you can just enter the first few letters of the last name, and check off various options, such as Russian, Polish and Lithuanian, and even enter a port of departure, such as Liverpool, using the White Page option.http://stevemorse.org/
When a list of names comes up, click on the option to view the scanned Manifest. You can enlarge it by clicking on the magnifying glass icon. Be sure to check for a second page by clicking Next or Previous. After about 1907, there are 2 pages. Also check the passengers next to the one you are looking at, to see if they are going to, or coming from the same relatives.
It's a little time-consuming, but may be worth the effort.