Hi Wilcoxon,
Thomas Harrison's father was a Charles Harrison (Occupation - Smith) this information is from Thomas Harrison's marriage to Eleanor Rogers 4th Aug 1855 St Giles Wrexham.
On the census prior to his marriage (1851) Thomas can be found living with his widowed mother Elizabeth and his siblings, namely, Ann born ca 1816, John ca 1818, Henry ca 1829, William ca 1832 & George ca 1836. The census gives their address as 'Top Of The Bank', Brymbo

From my notes I have John Hughes marrying Eleanor Ann Harrison at Holy Trinity Church, Gwersyllt 4th June 1917. Married by Banns and Witnesses were Jonathan Lewis & Janet Harrison (Brides sister). Page 102 Entry 203
I have information relating to both their sons John William & Robert Thomas Hughes's baptisms at Holy Trinity, Gwersyllt.
Eleanor Ann Hughes died on 12 November 1972 at the Maelor Hospital Wrexham. Obituary appears in 'The Leader' 1st Dec 1972 Page 10. I dont have a date of death for her husband John Hughes. Perhaps you know when John Hughes died.
Regards - Rowlandson