I saw this earlier, having read your other thread and thought I would post it for information.
1871 5391/ 33 / 6
7 Robert's Square, Merthyr
Eliza Bailey married 29 yrs born Glamorgan Glynn Heath / Neath
Thomas Bailey son 9 yrs born Merthyr
George son 8 yrs born Merthyr
Plus younger children- Ann 5 yrs, Daniel 2 yrs and William 6 months. Also
Mother Ann Davis and Brother Thomas.
I was unsure but have just seen that in 1862 there was a William Youd and an Eliza Davies on the same marriage page and a death for William Youd in 1864.
Regards
Heywood
No Joseph Bayles Winter in sight 1871 ................. The birth of William aged 6 months.......
William Winter - mmn Davies -
GRO Reference: 1870 D Quarter in Merthyr Tydfil Volume 11A Page 337
birth of Daniel under Bailey
Daniel Bailey - mmn Davies
GRO Reference: 1868 J Quarter in Merthyr Tydfil Volume 11A Page 453
birth of Ann under Youd ................
Ann Youd - mmn Davies
GRO Reference: 1867 M Quarter in Merthyr Tydfil Volume 11A Page 416
George Winter - mmn Joseph
GRO Reference: 1863 D Quarter in MERTHYR TYDFIL Volume 11A Page 318
Have these children been found on a later census 
Sandra