The best way to find daughters if there is no marriage record is to do a first name search in the county – since in 1870 they rarely married out of the area.

First list the ages and approximate dates of birth of the daughters – then look for them in 1880 to see if they are still living – or if there are age adjustments.

Then check 1900 census for the county and narrow down anyone with that first name that fits the age group. Follow that woman in later census periods – to see if she names her children after parents or sisters and brothers. Look for the marriage, death or divirce record for her – or an obituary. Obits for Charlotte for example might name her children under a married name.

Look also for the sons – see if a sister and husband are living with them – or a niece/nephew.

See if you can identify a church the family attended – there may be records there.

Find out the local cemeteries and see who did “colored” burials. There may even be other types of notices in the local paper.

To give you an example – Indiana Brantly is listed in 1870 as 16 (so born around 1854)

In 1900 there is only one black woman with first name Indiana in the county in that age range:

Name: Indiana Cummings
Home in 1900: Cato, Washington, Georgia
Age: 45
Estimated Birth Year: abt 1855
BirthPlace: Georgia
Relationship to head-of-house: Wife
Spouses's Name: Jack
Race: Black
Jack Cummings 52
Indiana Cummings 45
Wade Alexander 20 boarder

I would look very closely at her.

There is also a widowed Nora Walker – who has children named Brantly

Name: Nora Walker
Home in 1900: Sandersville, Washington, Georgia
Age: 27
Estimated Birth Year: abt 1873
BirthPlace: Georgia
Relationship to head-of-house: Head
Race: Black

I would look at her too

Hope this helps,

Denise