1911 (from the tree) wife is Annie and 2 children b Glasgow.
I don’t suppose John Valente was in England and Scotland in 1911?
The marriages show different Valenti fathers and Mr Pelosi’s death in 1918 is reported by his daughter Esther DeMarco.
Has Margaret Taylor been found as Margaret Ann?
I think we should assume they were 2 men named John Valente, one of whom married in Glasgow in 1905, unless there is firm evidence to link that John Valente to the one on 1911 census in Manchester.
Is there a name for a father of Maria Nunziata Pelosi or for Glasgow Annie?
Browsing Pelosi/Palossi &c baptisms & marriages in & around Manchester. There was a Pelosi family, Ferdinand & Scholastica at 7 Jersey St. I found at least 2 Pelosi & Pelosi marriages in Ancoats, including "Fortunatum" (Ferdinand?) and Scholastica.
Di Marco, Pelosi and Valente are all on a surnames list of Scottish-Italians in 1930s. 20+ entries for Pelosi and for Valente in Glasgow. Di Marco was also in Glasgow. "Family Portrait - the Scots Italians 1890-1940" National Library of Scotland.