From 91 South (Driving from Massachusetts toward Connecticut).

On 91 South - Take Exit 47 - Enfield / Suffield.
The ramp will connect to Route 190.
Keep driving on 190 over the Connecticut River.
190 ends at a T Intersection with traffic light.
Turn Left onto Route 159 at the T intersection.
Turn Right onto Thrall Avenue at the next traffic light.
Turn Right onto Bridge Street at the T intersection at the end of Thrall Avenue.
Turn Left onto South Main Street/Route 75 South at the traffic light at the end of Bridge Street.
Drive +/- 0.5 miles.
Pass the Catholic Church, the King House Museum and then the entrance of Kent Avenue on your left.
Spencer On Main is the first driveway after the entrance of Kent Avenue.
You can enter the driveway from both main Street and Kent Avenue.
We have a sign on the lawn which is lit up at night.
Enter the house by the side porch next to the driveway.

From 91 North (Driving from Hartford CT toward Massachusetts)

On 91 North, take exit 40 - Route 20 - toward Bradley International Airport.
Exit at Route 75.
Turn right onto Route 75 North at the end of the connector.
Pass the airport on your left.
Route 75 narrows to a two-lane road soon after leaving Suffield Industrial Park on your left and crossing one traffic light.
Drive around a mile, the road then turns to the right, goes down, crosses a small bridge and railroad tracks and then goes up.
You are entering Suffield Historic District.
Pass the first traffic light.
Spencer On Main is the first house on your right after passing the light (Not the house with Corinthian columns).
You cannot see the house from the light and need to keep driving after crossing it.
We have a sign on the lawn which is lit up at night.
Enter the house by the side porch next to the driveway.