Szagadyn = Шагадин as  transliterated/sounds like into Ukrainian.

?????

As per Ellis Island Immigration Records in USA, there is an Edward Sagadin, 24  years old (dob 1885), height 5-7 with black hair and brown eyes arriving in New York City August 30, 1909.  Exit port was Hamburg.  He lists father as JAN.  He lists himself as Polish, coming from Gorodek > Russia-Poland.  He was heading for his friend's (Krvasnowsky) place in Newark, New Jersey.