Re: OIL CAR
Was it early enough to be “pre-tank-car” ?
Initially (IIUC) oil (crude/refined) was shipped in barrels. Obviously, leakage would contaminate the interior for other loadings (such as grain).
So…Dedicated “Oil Car”?
Other possibility is whale oil/kerosene/lamp oils for shipment to stations or shops (for RR use) or “retail” stores, which would sell to consumers?
Or would that all be gone by 1900?