This. After you sign onto Workbench, go to Reports (or whatever it's called - it's the one at the right end of the drop-down bar). Under Reports, go to Store Reports. The Store Reports page is divided into sections. In the Store section, you'll see Store Fact Sheet. This gives all kinds of info about your store - your ETLs' names and positions, your prototype, sales volume, org chart, any pilots in which the store is participating, even the nearest competitors (i.e. Walmart).
We have those all over the TSC, but I'm pretty sure they haven't been updated in a couple years lol. Last I saw, they still had my previous ETL-GE's predecessor's name (yes, two ETLs-GE ago).
Full name?
Walk into TMSC and look for their office. All of the ETLs have name plates on their office door.
You could also print the store fact sheet from workbench.
Ask a TL or another etl.