1881 census it is Llandana( with Car in the margin)

looks more like Llandillo in 1871 (Landdillo) , but 1861 claims Monmouthshire - so how about Llandenny ?

http://www.genuki.org.uk/big/wal/MON/Llandenny/index.html

Llantilio Pertholey is close to Abergavenny which might link to

Ann Herbert ----------------------------------------------------------
Event(s):
Birth:
Christening: 03 JUL 1796 Abergavenny, Monmouth, England
------------------------------------------------------------
Parents:
Father: Charles Herbert
Mother: Ann
-------------------------------------------------
Source Information:
Batch No.: Dates: Source Call No.: Type: Printout Call No.: Type:
I055703 Film
Sheet: