Brewer Family Genealogy Forum
I think all your questions will be answered by my book, "The Brewer Families of Colonial Virginia." Jim Brewer of Tenn. published the Brewer Researcher Newsletter for many years and he publishe the book. Its now out of print, but email me at above address (I'm home now) and I'll try to get the new address for you.
But, off the top of my head. George Brewer who died in Brunswick and left 1744 had 11 children, including 8 sons. They included George Jr. who married the Wythe Girl and a William. My book documents both families.