I was born in the mid-50s, and my parents named me after a relative who pronounced this name "Eh-vah." I've had a lifetime correcting people. Glad to hear my family's pronunciation is catching on.
Ironically, the relative was from my father's side of the family (English/German) but that pronunciation is closer to Italian, and my mother's family is mostly Italian.
Actually, in Spanish the pronunciation is EH-bah. Spanish doesn't make a distinction between the sound of b and v, both graphemes correspond with the /b/ phoneme.