You and your wife have had a child and you name him Adam, then Adam grows up and has two children that he and his wife named Cain and Abel.
Cain and Abel are your grandchildren.
When Cain and Abel grow up and have their own children, these children are your great 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.
Step-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.
Yes, "great-grandchildren" is hyphenated correctly.
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!
He has 14 grandchildren, 4 great grandchildren and 1 great great grandchild. I know because I'm one of them!
You are a great-aunt.
their mother and father
Irene Houston Williams and Patricia Houston Williams were great grandchildren of Sam Houston