Denise Duhamel includes Tom Lux's "Outline for My Memoir" in The Best American Poetry 2013. Here's what Lux has to say about the poem's genesis:
Many of my friends were writing and publishing memoirs. I said to my mother one day, 'Ma, I can't write a memoir because my childhood was too normal and sane.' So she said,"You could write about that time your horse got stuck in the mud.' That's how this poem started.
You can read Lux's poem in The Best American Poetry 2013.