Question: Would you know a good reference for finding out tavern measurements in the 18th century? I am transcribing a ledger and account book and need a good reference on early liquid measurements. Do you know for instance what a "flagon" was considered in serving capacity?
Answer: A flagon is equal to one gallon of liquid. This and other old terms can be found in the book by Colin R. Chapman, Weights, Money and Other Measures used by our Ancestors. (Baltimore, MD: Genealogical Publishing Co., 2004).