George W. Duvall m. Rebecca Hack

I have some information on George W. Duvall that was married to Rebecca Hack.I have his line going back to Mareen through Mareen the younger.George was a textile person and was involved in setting up the Richmond factory in Augusta Ga. and was linked to the people beginning Ga. Tech.Tell me about his family..Parents, Brothers and Sisters. He had three sons and George Washington Duval Jr. was a methodist preacher and is 5 generations back. Thanks for any info.Also I would like the Duvall book and info on Duvall society.