I only have two Alewine's in my file.One is George W. Alewine.He married Elizabeth Freeman (possibly Duncan at that time)in 1889 -- probably not a first marraige, it was her 3rd (I think).Mrs. Elizabeth Alewine is buried at Eastview Cemetery in Honea Path, SC.Elizabeth was born in 1842.Assuming that George was of a similar age, he might have been a brother of your W.M. Alewine, or some relative.
My other Alewine is Rebecca Alewine.She was born in 1818 possibly in Laurens County, SC; married David Loner, probably early in 1841; and died 1883 in Leveland, SC.
If you have any information on Rebecca or George and Elizabeth, I would greatly appreciate it!