What are some practices to write about paternal, maternal grandparents, especially when their names are not used? In my case, the names are not given. One method I am considering is "p-grandfather", "m-grandmother"... etc, but I don't like it so much. Use sub script? grandfatherp? grandfatherm?
If I had a few paragraphs about my paternal family, would it be ok to use "my paternal grandfather" and "my paternal grandmother" when I first talk about them, then afterward use just "grandfather", "grandmother"? And following those paragraphs, I would introduce my maternal family, and use "my maternal grandfather" and "my maternal grandmother" when I first talk about them, then afterward use just "grandfather", "grandmother"?
How about in writings where there are interactions between these grandparents?
I am translating a memoir from Vietnamese to English.
Thank you.