Dear Matt,
Nice to hear from you, I hope you had a nice Christmas!!
What I have for my ancestor is this:
William Edward Rann (is this your William Edward Baker??) born in 1876. Married to May Baker (dates unknown). Married in the first quarter of 1898. So far so good.
No details on children other than my ancestor - Emily Eliza Margaret Rann (3 Jan 1899 Edmonton, Middlesex, England - 30 Jul 1971 Vic, Australia).
Now, there is an uncle Horrie on the Rann side, could this be your: Horace F bn 1911 Edmonton md a Smith in 1931 Edmonton??
My great grandmother - Emily Eliza M Rann married John Whitley on 8 Jun 1821 St Josephs Church, Edmonton, England.
Family rumour is that "John Whitley" may not have been his correct name due to some sort of connection to Nth Ireland.
Anyway, the emigrated to Australia in the early 1930's.
There children were:
Margaret May
Percy Walter
Frederick John Edward
Very similar to the names you have, may the kids were named after her brothers??
Cheers,
Michelle