I am seeking information regarding the Jewish family ITKOVITZ family that came to the U.S. from Russia in the early 1900s-1920s. It is believed that they were from the town of Luypsch (uncertain spelling) which was a bit west of Minsk. Many of them changed their name to IRWIN, settling in the Connecticut area. I have found quite a few of their descendants but there are many that are missing. Any clues, connection, help, etc., would be appreciated. Thanks