The parents don't match here, but the age and place does:

1900 United States Federal Census Record

Name: Clarence Morse
Home in 1900: Massies Mill, Nelson, Virginia
Age: 12
Estimated Birth Year: abt 1888
BirthPlace: Virginia
Relationship to head-of-house: Son
Parent's Name: Barbara
Race: Black

Household Members:
Barbara Morse 56
Sydney Morse 14
Clarence Morse 12
Cora Morse 9
Ida Morse 4

I'll keep looking.

Regina