Hi Again Betty
Dundalk is in North Louth and is the registration district for the area, there is a Louth village but it is very small and I am assuming for your search Dundalk and Louth are the same place but as you mention Lurgan I am attaching two sites for County Down which give hits for both Atkinson and Truman, a very uncommon name in Ireland. I searched find my past for Atkinson in Louth and only got hits on 4 wills in 1822 and 1826 but no other details of the wills, these exist but are not online to my knowledge.
The site I already gave you has good information on Atkinson from headstones, but Murphy as the most common Irish name I did not search.
The county Down sites are http://freepages.genealogy.rootsweb.ancestry.com/~rosdavies/ and
http://countydown.x10.mx/html/index2.htm
The history site for the area is here and you can join for a small fee and view their content online I understand.http://www.clahs.com/ They may have information on military history.
If I can offer any further help please ask.
Below are some sites relevent to Ireland which may assist you and the military connection is probably the best line.
The Irish Census of 1901 and 1911 are available online at http://www.census.nationalarchives.ie/search/ and the default census is 1911.
Griffiths Valuation of property owners and tenants is available at http://www.askaboutireland.ie/griffith-valuation/ and is only the head of household and was done between the 1847 and 1864 the year of publication is given on the information and it includes small area map.
The tithe applottments were carried out between 1823 and 1837 and are only of landholders of 1 acre and more who were registered to pay a tax to the Church of Ireland and the divisions are of their parishes, urban dwellers are not included. See http://titheapplotmentbooks.nationalarchives.ie/search/tab/home.jsp
The Flax Growers List of 1796 is available at http://www.failteromhat.com/ This is just a list of farmers who agreed to grow flax at the time. This site also contains the Hearth Money Roll lists of the 1660s for some counties (not all counties available). This site also contains other information mainly for the Cork area.
For County Louth see http://www.jbhall.freeservers.com/ and for the Termonfeckin area see http://www.termonfeckinhistory.ie/
The Louth County Library is here and offer a service which may carry a nominal cost. See http://www.louthcoco.ie/en/Services/Library/Genealogy-Research-Sources/
Two subscription sites are http://www.irishtimes.com/ancestor/ and https://www.rootsireland.ie/
Irish civil records only commenced in 1864 but Protestant marriages commenced in 1845.
Church records go back to the early 1800s for Catholics and a few decades earlier for the Church of Ireland (Protestant).
The Family Search website is free and has detailed information but I find it can be difficult to use but here it is https://familysearch.org/
Cork Street Hospital Dublin Archive http://rcpilibrary.blogspot.ie/
Irish Placenames http://www.logainm.ie/ga/
Regards
Pat
