Thanks to Lisa Louise Cooke for her informative article on using the free David Rumsey online map collection to find your map of interest. The article comes with screen shots of the website so make her instructions crystal clear.
If you have engaged in map research at all, you have probably come across the Rumsey collection. And you may have been a bit overwhelmed at the same time since the web site is quite extensive. All the more important to read Lisa's article and use her step-by-stop instructions.