I believe you have found our Alex Dersi.
Supported facts:
Born 1897, Nagyleta Hungary
Immagrated to US in 1922, papers by 1940, naturalized by 1945
Wife Catherine born abt. 1895, immigrated in 1922
Circumstantial Evidence
2nd son named Frank, possibly after Alex's father
Birthplace Hungary/Romania
Open Questons
Where were they married, US or Hungary
Family lore says 1st.Son Louis was a stepson to Alex (Louis Karolyi), was he Catherines?
1st son born in Ohio
Thanks again for all you help