Welcome to rootschat, sammyboy.
I did a check on Comrie, which wikipedia claims is in Perth and Kinross, Stirling, in Perthshire in 1891.
Also, once I had input Fife in Scotlandspeople, Comrie no longer shows, whilst it does for Perth.
However, if I just search on the district Comrie from 1855 to 2013 for Agnes Sharp for births or marriages, I get no hits.
If she was born or married before 1855, then it would have been useful to give a little more information about her.
Could you do so now, and also tell us what relatives you do know about, so we do not duplicate your research?
Thank-you.
Added:
I have just been on another website (GenesReunited), looking at people's trees, and someone has Agnes Sharp of Comrie Village, Fife, 1876, in theirs. Also lots of public member trees for Agnes from Comrie in 1876 on ancestry.
So why am I having problems with Comrie in Fife elsewhere?