There are several. Specifically to prevent someone asking and therefore knowing such a route.
The address of the Marrys Foundation is: , Millbrook, NY 12545
It depends on the route you take but the approximate driving distance is 20 miles.
That is not a question but some advise, ensure you take the correct route.
Although her son did live in Millbrook, NY at one time, Margaret Hamilton (Wicked Witch in the Wizard of Oz) did not have a residence in Millbrook. However, it is possible she spent some time living with her son prior to entering a nursing home in Sharon, Connecticut.
The address of the Town Of Washington Historical Society is: Po Box 135, Millbrook, NY 12545
Live to the truth
About 530 miles, depending on your route.
Urs she has owned quite a few homes in her lifetime. And NY just made Spencer.
It depends on your route, but the approximate driving distance (using major roadways) is 454 miles.
NapQuest suggests I-87 and I-95 for a driving time of 21 hours.
It is 481 miles via the fastest driving route according to Google Maps.
It depends on the route you take, but the approximate driving distance by road is 193 miles or 310 km.