I was surprised to see, on an early 2013 jaunt in Flushing, the 5th mile marker of what is now Northern Boulevard beside the front driveway of Kingsland Homestead on 138th Street, the home of the Queens Historical Society. Since I hadn’t visited for awhile, I don’t know how long it’s been there — will have to check during business hours to find out.
By 1916, only three Jackson Avenue (Northern Blvd) mile markers still stood: the 5 mile marker to the 34th Street ferry, at Grinnell Avenue (100th Street); the 3 mile marker near 51st Street (Old Bowery Bay Road); and the 2 mile marker near Steinway Street.
The 5 mile marker survived in place, amazingly, until 1987 when it was removed to the Langston Hughes Queens Library branch in Corona. Now, it is here at the Kingsland Homestead.