I'm Melvin's daughter. So you can say I'm from the William/Frank; Elzie/Melvin Line.
Anyway, I've been searching on familysearch I found Clarase Whittle (Castleberry, born 1871) and that one shows her married to William M. Whittle (1920 census. This is one is where most of our line pops up), which we know is the start of our line. I found her two more times.
Once connected to a death record for Booker F. Whittle born 1902, died 1921; birthplace Castleberry, but living in Wetumpka, Elmore County Alabama.
There she's listed as Classy Whittle married to W M Whittle (father's birthplace Butler County).
The other one I'm not 100 percent sure is her, but my gut is saying yes. There she's listed as Claresy Castlebury (mulatto) born in 1870 in Castleberry, Conecuch County Alabama. The mother listed is Sinthey Castlebury (black) born in 1825 Alabama and widowed. (1880 census). It shows both of Sinthey's parents being from South Carolina.
At that point I hit the wall. Same with William's father "Heny Whittle" born in 1842 from Oaky Streak,Butler County, Alabama.