Hi Sonjainoz,
I guess you are not too far astray ; )
If you look up Ratho in a map - perhaps on Multimap at:
http://www.multimap.com/- you will see that Ratho is not very far from the city of Edinburgh itself. And that it is in the county of Midlothian which has at times been referred to as Edinburghshire.
Indeed, the extract re Ratho on Genuki (always a good place to look) at:
http://www.genuki.org.uk/big/sct/MLN/Ratho/has an extract from an 1895 Gazetteer which refers to "Ratho, a village and a parish of Edinburghshire."
A search on the Hugh Wallis site at:
http://freepages.genealogy.rootsweb.com/~hughwallis/index.htmlists the following IGI batches for Ratho:
Marriages
M116984 1741-1855
M116981 1855-1875
Births/Christenings
C116982 1682-1689, 1738-1820
C116984 1820-1854
C116981 1855-1875
If you go to the IGI on FamilySearch at:
http://www.familysearch.organd enter last name KELLY, select British Isles as the region, and enter any one of the above batch numbers, you will get quite a few entries. And, for most of those batches, you will also have success if you enter last name CLARKSON.
Good Luck,
JAP