My grandmas name was evangeline and she always went by Eva publicly but to us she was Mammaw Tootie (not sure where the nickname originated but both had nicknames used by friends and family)Yes it's an 'uh' sound. Most people say 'Evangeline' or 'Angeline' or 'Angelina' but they never say 'Evangelina'. I've even had people call me Evelyn...so I just tell people to call me Eve.