OK, tracing back from the eight great-grandparents:

English
English
English
Welsh
Irish
French
French
English

And I have my fingers crossed that somewhere in there--through one of the French lines in the 18th or 19th century--I have some African blood. Have sent my samples to the DNA lab and must wait seven more weeks to find out for sure. All the known heritages are Anglo-Saxon/Northern European.