The maternal relationship between Sarah Mahala Travis and her son Arlie Walter Mott is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant RLB.

The segmental (via DNA segment triangulation) and total DNA shared between RLB and other confirmed descendants of Robert Travis/Mary Polly Cramer is consistent with the expected ranges for their respective relationships. Since RLB descends from Robert Travis/Mary Polly Cramer through Sarah Mahala Travis and her son Arlie Walter Mott, the presence of significant shared DNA between RLB and other known descendants of Robert Travis/Mary Polly Cramer validates the generational links along this maternal line.

This supports the conclusion that DNA was passed from MRCA couple Robert Travis/Mary Polly Cramer through Sarah Mahala Travis to Arlie Walter Mott, and ultimately to RLB, confirming this direct ancestral connection through multiple generations.