Table B10051B Table universe: Grandparents (Black or African American Alone) Living With Own Grandchildren Under 18 Years Columns in this table Total: Grandparent responsible for own grandchildren under 18 years: 30 to 59 years 60 years and over Grandparent not responsible for own grandchildren under 18 years: 30 to 59 years 60 years and over Background on table topics Topic pages describe concepts covered by the ACS. For background on the topics in Table B10051B, see: Seniors Race and Hispanic Origin Children Age and Sex