Hi Pip,
A few unknowns here ... firstly do you know the date of that cutting from the Liverpool Echo? If William Downey was a founder member of Everton FC, then he would have been present at the club in 1878.As thats the year of the clubs foundation.
Now the clip from the Echo mentions that he leaves a widow of 48 years behind...So assuming he also got married around that time I did some digging on the internet for marriage records between I searched on marriage records around the late 1800's in Liverpool with William Downey as a key-word, and I found this
Marriage: 18 Aug 1890 St Augustine, Everton, Lancashire, England
William Downey - 28 Tin Plate Worker Batchelor of 43 Boundary Place
Eliza Ann Brookfield - 27 Spinster of 52 Rupert Lane
Groom's Father: James Downey, Watchmaker (deceased)
Bride's Father: John Brookfield, Waiter
Witness: Joseph Francis Broadburn; Harriet Emily Kelly
Married by Banns by: William J Adams
Register: Marriage 1887 - 1896, Page 79, Entry 158
Source: LDS Film 1656014
I dont know if its the same William Downey but it maybe worth looking at