David.
There are not many people doing research on the Eva surname but a few. Most all were from Cornwall. Mine from Falmouth. Ordering the church records and census records from the Mormon FHC would give you what you need. My grandmother Emily Eva was the daughter of Eleanor and James. She was from Truro, St Agnes . You can find the Family History Center address in the phone book. If I can help, let me know
Pat Thomas
PATANT5558@AOL.com