Check out this website
http://www.antiquehome.org/House-Plans/
This site has thousands of antique house floorplans and links to other sites with even more. Spend a few minutes figuring out how to navigate and open the links and then try and find a good sample of the house you're interested in. You should be able to find it. The left side of the page has links to various years of periods with types of houses, specific designs or certain architects. That link will take you to a page with links on the left again which will take you to a page with a rendering of the house and a detailed set of floorplans.
Even if you can't find an exact home like yours you might find something similar enough. And it's kind of fun and informative.
Here's a link to a sample page...
http://www.antiquehome.org/House-Plans/1909-Radford-2/r2-8077.htm
and here's a screen snippet of a page.

oops. I posted the wrong link but corrected it. I inadvertently post a link to some business card mock ups I was working on.
