The 1912 NL Phillies had a losing 73-79 season finishing in 5th place, 30 1/2 behind the New York Giants, they had that year's SO leader and future HoF'er Grover Cleveland Alexander- in his 2nd season- on their roster.
Meanwhile in the AL the Athletics had a 90-62 record finishing 3rd 15 games behind World Series winners the Red Sox.
On their roster they had future HoF'ers pitcher Chief Bender and infielders Eddie Collins and Frank 'Home Run' Baker.

Interestingly enough that grotesque looking building in the 2013 photo IS Snellenburg's. They demolished the upper floors and covered the rest in a modern facade. Earlier this year it was finally torn down for good, but some of the original facade was exposed during demolition. You can see some photos I took of it here:

https://www.flickr.com/photos/rgb/sets/72157648680746443

The bottom 2 stories of the Snellenburgs department store, as shown in the 2013 photo, have just been completely removed, leaving a large hole in the ground.

Below is the same view from October of 2013.

That car looks like a ca. 1911 Lozier. Pictured below is a 1911 Model 51. The Lozier Motor Co. was located in Detroit and built luxury cars starting in 1900 and ending in 1915, when the company went bankrupt.

Sounds like a place I'd love to waste an afternoon in!

It must have been a Sunday or a holiday, because I cannot imagine that the street in front of Reading Terminal, with its huge consumer food market, could possibly be that deserted on a business day.