Many Goods from the pamphlet selection have data in LocatorPlus. Every one of the pre-1801 and about 50,000 19th and 20th century pamphlets do not yet have documents in LocatorPlus. Most of them are available by seeking inside the Index-Catalogue in the Library from the Surgeon-General’s Office About the generations, https://maps.app.goo.gl/4RRJnUstxVnoZ5sQ8