I love looking up historical facts like these. So, I dug up what info I could quickly on this property for you.
I assume you are asking about the REO property, that is on the corner of Lancelot Ave and Denman Ct (the alley) and is facing North-East.
12612 Lancelot Avenue. You can see a google image of how the property looked recently, here:
click here http://kierantherealtor.com/411/12612Lancelot.jpg
This property was built by a German builder who became very influential in Ohio, named B. Shatzinger. He was the first president of the realty company called Schatzinger Consolidated Realty Company. It was one of the largest realty companies of that era.
Here is a photograph of Schatzinger (bottom right corner):
click here http://kierantherealtor.com/411/12612Lancelot-builder.jpg
Its really difficult to find out who were the first people to live in the house, as the record keeping wasn't half of what it is now.
All the best,
Keller Williams Hollywood Hills