There is a Pince family a few households down from David and Margaret Pool in the 1880 Census. (Society Hill, Darlington, SC)

Prince, Alfred Head M B 50 SC
Prince, Charlotte Wife F B 40 SC
Prince, Fleming W. Son M B 23 SC
Prince, A T Son M B 28 SC
Prince, Martin Son M B 15 SC
Prince, Whittemore Son M B 14 SC
Prince, Alice Daughter F B 8 SC
Prince, Ellen Daughter F B 6 SC
Prince, Frances Son M B 4 SC

There is another Prince a few households down from the Prince family. This is a 19 year old female Black living in a household by herself.

Prince, C A Head F B 19 SC

I hope this helps.

Ed Adams