"Lighthouses and Legends of the Hudson" by Ruth Glunt is the book that came with the Tarrytown HL. The lighthouse in Mike's picture was the 2nd built in 1868. The original was 1829. Although torn down in 1933 Ruth states that this second lighthouse was "closed down long before when dredging changed the course of the channel and a lighted tower was placed elsewhere." Also, "When torn down in 1933, the huge foundation stones were moved for the base of the porch of the Stuyvesant Post Office".

Many of the Hudson River Lighthouses are the 2nd or even 3rd at their locations. At one point I started to do a timeline to see if it would make it easier to figure out. It did seem to make a little more sense. Depending on the source the dates varied somewhat. Maybe someday I'll finish it!