Nagy is a well-known Hungarian surname. Attila is a common name across eastern Europe, the Balkans, Turkey and eastward.
Imre Nagy tried to lead Hungary out of the Communist Bloc in 1956 and was later executed. Ladislav Nagy was a skilled and productive player for nine years in the NHL. Charles Nagy was the ace of the Cleveland Indians in the 1990s.
Attila (Father) Nagy (great). Great Father. Kemosabe.
And then there is John Gnagy, a television art instructor of the 1940s and 1950s. “Learn to Draw with John Gnagy” drawing kits (with charcoal, erasers, and book) used to be sold in the hobby section of some toy stores.
The pitcher pronounced it Naggy. But, as I recall, the Imre was Nawge (rhymes with garage).
This particular Attila could be of Hungarian heritage. But, given the area, I'm not giving up on the commie lib hippie doper parents, either.