I would like the origin and meaning of the above. I understand SZ = a SH sound. The earliest Siedlarczyk I found was born in Krosnica Polish. My Grandfather, Wojciech Siedlak, came from Krosnica Austria Polish. He lived as Adalbert Sydlak in Carbondale PA Lackawanna County. He is in the 1907 Ship Manifest from Krosnica, Austria Polish to Passaic NJ with wife, Marya, and dau, Marya, as Wojciech Szydlak. Marya's maiden name was Janczak. [spelled as Yansock at the 1914 birth of their dau Katherine in Piney Forh OH]. He later uses Siedlak in Cadiz OH where his wife is Maryann Siedlak in church records of death in 1918. His son died in March of 1919 and is listed as Shedlock in the church and Shellock in the OH State's records. Thank you for any help. peekaboobrat at yahoo dot com