Yes, you can see who posted a journal to the connected ledger, but this information is not accessible from the main journal screen. Instead, follow these steps:
How to view who posted a journal
Navigate to one of the relevant account’s worksheets (an account impacted by the journal).
Go to the Worksheet History tab.
Here, you’ll see the account’s history, which includes:
Journals posted to the connected ledger.
The name of the user who posted them.
The date and time the journals were posted.
Any updates made to the journal.