I didn't understand your question. I looked up Bradstreet's "To My Dear and Loving Husband," which I had never read before. There are not many examples of alliteration, but she seems to be deliberately using alliteration for poetic embellishment in the first stanza with
and in the last stanza with
I see no other alliteration in the poem.
Alliteration is a repetition of a particular sound in a first syllable of a series of words. In the poem "To My Dear and Loving Husband" there are some examples of a repetition of sound.
"Then while we live in love let' so persevere"
While and we repeat the /w/ sound.
"I prize thy love more than whole mines of gold"
More and mines repeat the/m/ sound.
I MEANT AN EXAMPLE OF ALLITERATION FROM THE STORY "TO MY DEAR AND LOVING HUSBAND," BY ANNE BRADSTREET*****