Clue #3
1974 saw the Village of Oakdale reach grown up status.
City Hall was a dull, tin, Quonset Hut – far from a palace.
And years before agriculture and farming consumed most of the land.
Modern day streets and roads current residents could scarcely understand.
More substantive hints you request: okey-dokey.
I’m a small plastic disk, embedded, and hiding east of the Gohlike.