The Ocean Springs Archives pretty much says the post office moved around according to who was Postmaster. If they were a merchant, the post office was located in their store. The closest thing I found to an address was: "There is a high degree of certitude that the site of the first post office called “Ocean Springs”, which was established in December 1854, was situated on the west side of Washington Avenue near Old Fort Bayou. The very popular Aunt Jenny’s Catfish Restaurant at 1217 Washington Avenue occupies this location today." Below is the Google Street view of Aunt Jenny's on the right.

Hope the photographer has some Ocean "Spring" in his/her step -- looks like the opposite of Southern Charm/Hospitality on the looks of most faces looking at the camera. Hope the photographer was wearing pitchfork and salt-proof britches!

The men here from Ocean Springs are pretty excited about seeing a camera. Wait till they get their first glimpse of a female ankle!

The micro light and shadow on the foliage is stunning. I'm believing that a slightly longer exposure allowed for more light to expose the film and lighten the shaded street scene but allowed for the breeze in the trees to create such a beautiful image overall. I wonder if the photographer had an inkling that this would/could happen? Truly incredible.

I'm betting the "Detroit Photographic Company" photographer yelled out
"Freeze", "Hold that pose" or whatever was appropriate in 1901 to everyone in this image, including the folks by the wagon at the far end of the street.

[I can see that door right through Eeyore's ear, so not everyone froze. - Dave]