An elegy is a poem, typically one memorializing and praising the dead or (loosely) one with a mournful and gloomy contemplative tone; it may also be a piece of music of similar topic and tone. A eulogy is a speech, formal and elegant in form, in praise of someone recently dead.
So, I guess it’s a eulogy I need to write.
UPDATE: Final product.
Was going to mention that…
Knowing you, I doubted that you would want to do an Elegy and would more inclined toward the Eulogy of your Nona.
Good luck, safe travels and Hugs to you, Margie, Kitten, Hal and Gloria.