18 April 1854 James Walsh, of Mudgee, was granted a General Publican's Licence to operate the Shamrock Inn, Mortimer Street, Mudgee. His sureties were Myles Hartte Lyons, farmer, Mudgee and William Milton, baker, Mudgee.
In 1866 Thomas Duggan was granted a Publicam's License for the Shamrock, Mudgee.
In 1867 Stephen Malone was granted a Publicam's License for the Shamrock, Mudgee.
In 1868 Thomas Duggan was granted a Publicam's License for the Shamrock, Mudgee.