Another approach to the Tracey maps, including the original cardfile tract index and digitized images of the maps has been installed on plats.net, accessible under Washington County. You can also find the 1851 wall map in high resolution there - and the USGenWeb site for Washington Co. uploaded this a few years ago -- as well as a photostat of the 1889 rendition of it (a huge file, last time I looked it had a wrong filename suffix, but maybe they've fixed it). Good hunting, Judy