I found some small amount of info about William Harvey and Emmeline Morse Harvey when I was researching the Harvey family.
Here is part of what I found:
I show George Harvey and Mary Anne Johnson married and had 8 children
Their son William married Emmeline Morse and had 2 children: Marion and Greta
Then William remarried to Sarah Chase and had 3 more kids: Elizabeth, Olivia, and Donald.
I hope this is helpful and would be happy to exchange more Harvey family info as I am trying to piece together my own ancestry.