We use Grandma and Grandpa before the given name, regardless of generation. Same with Aunt or Uncle. So if I were Lois's daughter, I'd say Mom and Aunt Lucy. My kids, grandkids, and great-grandkids would all say Grandma Lois and Aunt Lucy.
"Hold on, my friends, to the Constitution and to the Republic for which it stands. Miracles do not cluster and what has happened once in 6,000 years, may not happen again. Hold on to the Constitution" - Daniel Webster
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