Need help please (LOAD BEARING WALL)

[Anthony Theokary]

Hi everyone my wife and I just bought our first home in South Philly. The home is 13’ wide and 36’ long. It’s very tiny. But in a great location. The house actually was added to in the back near the kitchen about 6’ a very long time ago. The joists run the width of the house and are all pocketed in to the party walls. There was a wall dividing the kitchen and living room it ran underneath and on top of a joist the width of the house with an opening to the kitchen. I took that down. I asked a lot of people if it was bearing and they all said they didn’t think so. Mind you the wall in question is about 2’ from the old back of the house. I can see that cut. Can anyone please verify if they know of this was a bearing wall or not?

The blue arrow is where the old back of the house was cut out and the red arrow is where the wall in question was. 

Thank you for all your help.