Henry's death registration has:
Henry Jones age 69 died 4 Oct 1934 at 14 Well St. Menai Bridge, Llandysilio. He was described as a Yachtsman. The informant was Hugh Thomas Jones, son.
He is living at Beudy, Menai Bridge in the 1871 census, aged 6, grandson of the head of the household - Hugh Jones, 68, Boatman b. Menai Bridge and his wife Ellin, 66, b. Llanllyfni, Caernarvonshire.
He was baptized at Llandysilio Parish Church on 16 Oct 1864, the illegitimate son of Elizabeth Jones.
Elizabeth was born 2 Nov 1841 at Llandysilio, the daughter of Hugh Jones and Ellen (maiden name Griffiths). The family are living at 'Barix' Menai Bridge, Llandysilio in the 1851 census.
Hope this helps.