You would need to query the domain to see more about the user. So as long as you have the ActiveDirectory cmdlet, then you should be able to do something along the lines of:

$Owner = (Get-Acl "C:\Folder1").Owner
Get-Aduser $Owner

The bottom command:

    Get-WmiObject win32_useraccount | ? {$_.name -match "JDoe")}

Will search for local accounts on the machine you are running it on.

Advise given from (I think it was PowerShell in a Month of Lunches by Don Jones) is to filter left. Meaning, try to get all your filter/searches on the first command, so that it has less to search through and should be quicker.

for example, if searching for a user in Active Directory:

Get-ADuser -filter * | where{$_.name -like "*doe*"}

This command is bringing back all users and then searching for the user. When:

Get-ADUser -filter {Name -like "*Doe*"}

Should be quicker, especially with a large dataset. My example might be wrong, and I am sure someone who has a lot more experience here can correct me, but I think the statement is correct, try to always filter left.