I cannot fully explain the connection between Seaborn Brewer and Samuel H. Coffman, but I can say that his wife, Susan B. Coffman, nee Susan BREWER, was b. in SC and, I believe, came to AL where she met and married S. H. Coffman from Shenandoah Co., VA. Susan had a sister, Lucinda Brewer, who married a Mr. G.G. Child and who lived in Mobile, AL.
Samuel Henry Coffman came to Sumter County and purchased a great deal of property.He was growing cotton I believe.He died at an early age ... I have no idea the cause of his death.I have looked at the few remaining newspapers and cannot find an obit for him.Dewitt Coffman was a cousin and probably a business partner who came to AL, settled the property, etc., and then returned to Virginia.
My husband is a descendant of Susan B. and Samuel H. Coffman's 2nd child, Samuel Henry Coffman, Jr., born after S.H.C., Sr's death.
I am hoping to find the parents of Susan Brewer Coffman's.
Quoted from your message: "Seaborn Brewer patented land in twp. 19N, range 2W, Sumter Co., Ala., on 15 Mar 1837 along with his father and brother. Both of his tracts listed Samuel H. Coffman as a patentee, as did a tract by William Brewer. By implication, he was at least 21 years old on that date.
The last will and testament of Samuel H. Coffman was written 4 Oct 1839 and probated 9 November 1839 in Sumter Co., Ala. He mentions his mother, Mary Coffman of Shenandoah Co., Va., his wife, Susan B. Coffman, now pregnant, his daughter Virginia Elizabeth Coffman, and his three brothers, Samuel, Erasmus, and DeWitt Coffman. His connection with the Brewer family is not evident from these data.