This is what I have on your family. Samuel Holbrooks' father, Greenberry Holbrook was the brother to my great, great, great, grandfather Samuel Asbury Holbrook.

Descendants of: Samuel R. Holbrook

1 Samuel R. Holbrook b. 3 Apr 1854 d. 2 Jun 1918 Cherokee Co., GA
m. Mattie Cobb
2 Robert G. Holbrook b. ___ 1876
2 Cicro Holbrook b. ___ 1878
2 Sally S. Holbrook b. ___ 1879
m. George Lewis
3 Olen Lewis
m. Velma Monroe
4 Gary Lewis
m. Sandra Cowart
4 Danny Lewis
m. Linda Hogan
3 Susie Lewis
m. Wesley Westbrook
3 Leona Lewis
m. Jim Anderson
2 Lizzie Bell Holbrook
m. Edd Castleberry
2 Oscar Holbrook
2 Mae Holbrook
m. Homer Howell
2 Charles Luther Holbrook
m. Daisy Gilstrap
2 Mather L. Holbrook, Sr. b. 1 Dec 1888 d. 26 Apr 1960
m. Josie Padgett b. 9 Feb 1891
3 Mather L. Holbrook, Jr. b. 5 Jun 1918 d. 11 Sep 1964
3 Ardeal Holbrook
m. Drucella Evans m. 23 Aug 1931 Forsyth Co., GA
4 Connie Holbrook
m. Robert Wood
4 Kay Holbrook
m. Lamar Pendley
2 Jess Holbrook
m. Vera Turner d. 15 Jan 1981 Jonesboro, Ga.
2 Rachel Holbrook
m. Unknown Parker
m. Unknown Lewis
2 Roy Holbrook

There may be a book on the Holbrook Family in the Forsyth Co. Library. If not, the book is at the R. T. Jones Regional Library in Canton, Ga.