Hi, do you know when or how the family adopted the Szegö surname?
I have looked through the microfilms of Sátoraljújhely, and haven't seen Szegö... so he likely wasn't registered this name at birth.
My Szegö ancestry was from Nagykanizsa, Nemesdéd, and Nagyvazsóny - we changed from Sattler to Szegö in 1906 (My uncle László Sattler b. 1901 became László Szegö, d. 1975), and I've only found one other Szegö family in that era.
Best regards,
David Szegö, Toronto