Hard to tell but I'm his great- great- nephew. My mother is his great niece and she doesn't have a brother so it's very hard to tell because Eisenhower has a huge family!
David
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He was President of Columbia University from 1948 to 1951
You would be his great aunt. To you he would be your great nephew.
you would be the child's great aunty or uncle Therefore, they would be your great niece or nephew.
Your nephew's son is your grand nephew or great nephew. Some people say one, some say the other.
Your nephew's son is your great nephew. Your niece's son is also your great nephew.
Your nephew's child is your great niece (if a girl) or your great nephew (if a boy).
Your nephew's child is your great nephew (if a boy) or great niece (if a girl). You are his or her great aunt.
Your nephew's child is your great nephew or great niece depending upon sex.Your nephew's grandchild is your great great nephew or great great niece, depending on sex.
Your great nephew's child is your great great niece (if a girl) or great great nephew (if a boy).
Your nephew's daughter's son is your great-great nephew. Your nephew's daughter is your great niece.