Hi - my notes have Ann as the daughter of Richard and Sarah but the only source for this is Phil Cover, a contact I've made in my research. I have details on Richard's family going back a few generations which you can find here:
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=mactabby&id=I1394I have also failed in the past to find any record of Ann in the census. The Colver name is the most frequently mis-spelled in all of my tree, and thus a pain for census research!
There's no burial record for Ann, but there are 4 other Ann Colvers who were infants in the area at the time who could also potentially match the BMD record and for whom I have no other details as to whether they survived, married etc.
If you did pull the certificate it would be great to have a confirmation of what's on it.
Thanks
Mac