"Negro" on a US birth certificate from that era would most likely mean a black person born in the US.
How people have dealt with classifying races and ethnicities has changed over the years, and differs amongst different countries. Black people of mixed race in the US were at one time classified as quadroon, octaroon, mulatto, etc...
I think there are even differences between how different states in the US classifies people, as well.
"Negro" on a US birth certificate from that era would most likely mean a black person born in the US.
How people have dealt with classifying races and ethnicities has changed over the years, and differs amongst different countries. Black people of mixed race in the US were at one time classified as quadroon, octaroon, mulatto, etc...
I think there are even differences between how different states in the US classifies people, as well.