Her name? Maybe Gram Susan or whatever.

PS, "step" should not enter into it at all. My grandson has Gramma Helene, Judy, Dot and Marilyn.

She doesn't want Grandma or Nana like her present grandchildren.

So she treats that step grandchild differently?

"She who does not want to be called Grandma or Nana"

Gram and her first name sounds good - last name sounds too distant. And no, I am sure this person would not treat her new step grandchildren different. Only thing different is integrating into an already established family with preteens. She is trying to be considerate of their feelings.

I think that sounds very nice.

My step sons children call me Grammy.....my step children of 30 years never called my mom...always Tammy. When their son was born he asked me what I wanted to be "called" by the grandchildren......I said whatever they felt comfy saying. It didn't matter to me. So that's how the title Grammy came about.

Just love them lil guys.

Ask her what she would like to be called.

When I met my mother-in-law, she asked me what I would like to call her. I said that I would like to call her Dolly, which was her first name.

never had a step-grandmother, but I called my mother-in-law by her name, & she called me by mine.

We were grown-up people, we had known each other before I met her son, & we both knew she wasn't my mother, although I think she sort of loved me (she & her son, my then-spouse, were too close for her to be entirely happy with any woman in his life).

& when I was growing up, once I reached some age, I forget what age it was, I called my aunts by their names, without the "aunt".

They always treated me like a human being with a brain (back in the day, adults often talked down to kids), & I had wonderful relationships with them.

If kids are old enough to be aware of different relationships, they may be more comfortable calling step-grandmother "Doris".

or they can call her "Sylvia". Tell 'em I said so LOL!