Yes, "great-grandchildren" is hyphenated correctly.
a great grandmother is called in French "une arrière grand-mère" a great grand-father is "un arrière grand-père" great grandchildren are "les arrières petits-enfants" (arrière petite-fille, arrière petit-fils)
The correct spelling is "photo."
The Maori word for grandchildren is mokopuna.
"mokopuna" = "grandchild" plural "grandchildren" = "Nga mokopuna"
The relationship term is usually hyphenated "great-grandchildren" (grandchildren's kids).
You are a "great uncle" to your step-brother's grandchildren. You might even be called a "step great uncle" but most people don't bother specifying step-relationships that distant.
Reba has step- grandchildren
Your great grandmother's step-father's cousin's are not related to you.
They're step-grandchildren.
Great-grandchildren
Yes, Jimmy Swaggart does have grandchildren and great grandchildren. As of May 2014, he has 3 grandchildren and 6 great grandchildren.
Queen Elizabeth has 8 grandchildren and 5 great-grandchildren.
The common ancestor is your parents. Your children and your sister's children are first cousins. Your grandchildren and your sister's grandchildren are second cousins. Your great-grandchildren and your sister's great-grandchildren are third cousins.
Reba has step- grandchildren
Your great aunt is not your great grandparent but she could be a great grandparent if she has children , grandchildren and great grandchildren.
He has 14 grandchildren, 4 great grandchildren and 1 great great grandchild. I know because I'm one of them!