Question about a poem

Any lit experts out there, because I’m definitely not.

I’m trying to remember who wrote a poem/eulogy when their young daughter died. I think it was a children’s author, and for some reason I thought it was Lewis Carrol/Dodgson but I guess not because he didn’t have any children.

It was a very beautiful, moving poem that I promised to give someone but I can’t seem to find it.

Thanks for any help and if this is in the wrong place, please move it.

Nevermind! I found it, it was Mark Twain.