Thanks for the question.

Dragon flies are amazing animals. I just love them.

Your first picture shows a Spiny Baskettail (Epitheca spinigera). It is especially common in northern Wisconsin and northern Minnesota. It favors wet areas so I suspect that you found this near a lake or a stream. See the following:

https://wiatri.net/inventory/odonata/SpeciesAccounts/SpeciesDetail.cfm?TaxaID=65

The second picture is of a Four Spotted Chaser (Libellula quadrimaculata). This particular species migrates south in the fall in huge flocks. Perhaps you have seen them?  See:

https://bugguide.net/node/view/1374301

Thanks again for your question and enjoy these beautiful creatures.