That building was actually built in 1719. Which is probably why they picked arbitrary dates vs using 3rd party input. If they see 1900 then the construction date is old and probably unknown which is good enough.
DeLancey built the current building as a house in 1719. The small yellow bricks used in its construction were imported from the Dutch Republic and the sizable mansion ranked highly in the province for its quality.[7] His heirs sold the building in 1762 to Samuel Fraunces who converted the home into the popular tavern, first named the Queen's Head.
DeLancey built the current building as a house in 1719. The small yellow bricks used in its construction were imported from the Dutch Republic and the sizable mansion ranked highly in the province for its quality.[7] His heirs sold the building in 1762 to Samuel Fraunces who converted the home into the popular tavern, first named the Queen's Head.