Just found out Im 1/8 black. My GranDad though my GranMa was part Indian should I say something?

It may be interesting to you, but I don't see why you feel the need to tell your grandfather--after all, he knew your grandmother a lot better than you did. What would be the point? "Hey, grandad, you thought grandma was part Indian, but actually she was part black!"

The classification is the result of racists needing to put everyone into a category, and these classifications were often subjective and arbitrary. Mulatto can have several meanings:

Mulattos may also be an admixture of Native American, South American native and African Americans[3] according to Henings Statutes of Virginia 1705, which reads as follows: "And for clearing all manner of doubts which hereafter may happen to arise upon the construction of this act, or any other act, who shall be accounted a mulatto, Be it enacted and declared, and it is hereby enacted and declared, That the child of an Indigenous and the child, grand child, or great grand child, of a ***** shall be deemed, accounted, held and taken to be a mulatto."[4] In colonial Latin America, mulato could also denote an individual of mixed African and Native American ancestry.[5] However, today those who are mixtures of Indigenous peoples of the Americas and Black Africans are called Zambos while those who are mixtures of African American and Native American are called Black Indians and sometimes are solely classified or identify as African American.[3] To further complicate matters, in early American history the term mulatto is also seen regarding Native American and European mixed offspring, and certain tribes of Indians of the Inocoplo family referred to themselves as mulato as well.

Like the other answerers say, your grandfather was no doubt aware of your grandmother's racially mixed background.

In your shoes, I'd be more curious as to why that family information hadn't been passed down to you as part of your ancestral background & legacy.

Louisiana, with its unique history of Spanish, then French, then US rule, & its proximity to so many regions - the Caribbean, North Amer., Central Amer., & even the NE section of South America, was a place where nationalities & races mixed much more freely & with less overt prejudice than many locations for a long time - up until the US obtained it & transported its versions of slavery & racism there.

I've done family history work for a 2nd cousin of mine whose line goes way back within Louisiana. I think that is fascinating history, both geographically & racially.

It is not your business to pass thin information on to your Grandfather. He probably knew and at this point why create a tempest in a tea pot over something that could only create hard feelings.

There are somethings that genealogical ethics covers and this is one of them. We do not tell or talk about the negative family stories or issues unless the person involved brings it up.

"C for colored Mulatto"? On the U.S. Censuses, there is Mulatto (which means a black parent and a white parent), but don't know about "colored". In the 1940s they were referred to as "darkies".

The thing of it is, if you merely searched for names, you may not have the correct people. Just type in "john smith" and see what happens. Most of my ancestors seemed to have very common names as whenever I searched I would get hits from about a dozen countries and 20 States. Usually none were correct.

In other words, unless you start with your own birth certificate, then the birth/marriage/death certificates of your parents, their parents, and so on, the chances are you do not have the correct people.

If you have done that, going back one generation at a time, go for DNA testing to make certain. Official records really are not all that accurate.

If your grandfather is old, he might not take it well. So, after checking and rechecking, if you come up with the same results, you might try something like, "Hey, Grandpa! I am trying to trace our ancestry, but keep coming up with being part black and part Indian! What do you think about that?"

Of course, also consider:

If you are 1/8 black,

One of your parents would be 1/4 black,

And one of your grandparents would be 1/2 black, which, USUALLY, is obvious. Not always; just consider the children of Michael Jackson.

A citizen of the arena with a interesting background and history. Look on the a laugh you are going to have looking and deciding approximately the unique nations your moms and dads and grandparents have come from.

you can have dna testing; my cousin did according a testing company in Ohio; he is 81 % european; 13% native american; 3 % sub-sarahan africa and 3% east asian.

According a Penn State study "the average white person is 3% black".

What makes you think that he didn't know and thinks that it was none of your business?

you just did

i'm sorry for your loss.