Just for fun, I did the simplest of distant reading analysis against Emily Dickinson's poems, and for the most part, I believe the poems have more things in common than differences. For example, the following topic modeling visiualization illustrates how each of the three volumes of poems are thematically similar:

For more detail, see the analysis page.

Maybe I ought to download PDF versions of the poems from the HathiTrust, bind them, and use a more traditional reading process for analysis. After all, the corpus is relatively small.