Hi Again, I have had a look at the 1834 census of Tallonstown parish (there is also a townland f that name) the census list was done by parish priest and list head of house and number of Catholics and Protestants in the house but only names the head, there are more Sharkey names that Murray but plenty of each.
Here is the website I mentionedhttp://jbhall.clahs.ie/ There is a story on the site of the Wild Goose Lodge Murders which occurred in the area in 1816, not a nice story, Netflix made a film of it about the events locally about 3 years ago if you want to see if you can find it. Same name film.
If you would post your story under the Chronicles section of the site, parish of Tallonstown, Louth it will be seen by all others visiting that site who will have a specific interest in the area.
The census I mention was published in the Journal of the site above and is only available on the J Stor academic site that I am aware of.
Feel free to ask any follow ups you may have.
Regards
Pat