I ordered some information on a Mary ARO that I thought was a relative, but she was not related. The primary person on the information I have is a Kalli ARO who lived on the Iron Range in Minnesota. The papers include the petition for citizenship, petition granted for citizenship, Alien Registration of holdings, and declaration of intention. This contains quite a bit of information including port of entry, emigration location, name of the vessel sailed to the U.S. on etc. Other names on the document which may be of use to someone are
Mary Aro (wife), children's names and birthdates
Esther Aro Hietala and Leo Aro.
I will send this to someone who can use it.