Black Patent leather dancing pumps with ribbed silk bows are the most traditional. Formal shoes can also be shined leather or velvet. Velvet pumps are most appropriate when you are hosting a formal evening at home!
Oxfords (lace up) are fine, especially in an emergency. If you're going to wear oxfords, the best choice would be a plain toe or cap toe. Nothing that would resemble daily work shoes!!! No wing tips or loafers, or any other style that might be considered business shoes. The oxford shoe can be shined as you would any dressy shoe.
The word pump may have come from either the word "pomp", or "pump" (from the application of a foot brake by the coachmen that wore this shoe style). Pumps date from the 16th century and are the oldest part of evening dress. Originally they were worn with knee breeches and silk stockings.
Patent leather is from New Jersey by way of France. The art of varnishing woods and metals was used on leather in the early 1800's in France for pumps, which were all the rage then. In 1922 Seth Boyden of Newark, New Jersey developed leather based on the European method and applied for a "patent" for the process.
Socks of fine fabric, black, over the calf.