Hi Chiad Fhear,
Well this is quite interesting, just found your posting, and we are connected to John William Briscoe, Attorney of Tullimore, Ireland. We live in Australia, and John Briscoe is our GG Grandfather . We have copy of shipping records of the family arriving in Australia on board the "Victoria"
We have found in notices in Sydney Morning Herald - Marriage 6.10.1902 at Centenary Hall, York Street, Sydney, marriage of Mildred Mary Briscoe, 5th daughter of George Briscoe of Millers Point, Grand-daughter of the late John William Briscoe, Attorney of Tullimore, Ireland.
Grandmother Mildred's Father, George was a Drayman at Millers Point, Sydney from 1861 to around 1903 when he retired, he had various properties around Sydney. George Briscoe married Mary Donnelly in 1859 at the Presbyterian Church, Millers Point, Sydney.
Looking forward to hear further regarding your family connection
jan