Jas Townsend and son is a company who sell period clothing and equipment to reenactors covering about 1750-1840. They are an awesome source to use when writing a period book. Ever wanted to know what that chamber pot looked like? Did you know that there was a regency equivalent to a dry erase board? On top of all the items they sell they have an excellent youtube channel. There are videos about cooking, building ovens, setting up tents, making ink.... I've found them very helpful in my current project.