For which of Robert Frost's daughters did he write "The Master Speed"?

Question

I've googled this query and have only found references to Frost's "daughter" for whom he wrote this poem. But he had several (all with tragic fates) -- which one inspired this work?

I may re-post this question on down the road, just in case someone else stumbles upon it and has the answer....

Answer 1

I could never find the answer to this. If you find out please re-post the question. Thanks.

Answer 2

Robert Frost had three daughters...Irma, Marjorie and Elinor...Elinor (the daughter, not the wife) died three days after she was born. Marjorie was the only one who married, and she died shortly after she gave birth to a daughter of her own...however, Marjorie was the one for whom he wrote the poem.