We have no way to verify that the address is accurate because public address histories online can
sometimes become intertwined when 2 people have similar names. That may be what's going on with the Ethan middle name, IDK. The dates given for when the address was used can often be wrong too (especially when we are looking at cold cases of missing persons).
That said, Lori's "Vallow" surname is her most unique one (meaning there are not many Lori Vallows). The name on the PO Box lists her as "Lori Charles Vallow" which points to this being hers as well, since I found no other Lori Vallows with a husband named Charles. The address is connected to other locations where she in known to have lived. The PO Box is most certainly hers. Maybe LE can subpoena the USPS to find out when she signed up for the PO Box?
Another interesting thing is that the Chandler AZ address shown as a "current address" along with the PO Box is not the house where Charles died. I believe that address on Gemini PL may be where Lori and Charles lived when Lori went MIA in Jan/Feb 2019. I can't confirm that, however. So consider it my opinion. Give yourself a pat on the back for finding the Sugar City address back in Dec when we didn't know much about how significant it could be.
https://www.whitepages.com/name/Lori-Charles-Vallow/Sugar-City-ID/17begbmv
MOO.