Take Rte 111 to Salem. Go right at junction of Route 28 (at lights with U.S. Gas station). Proceed to Salem center and take a left at the lights with the Exxon station on one corner and 99 restaurant on another (this will be at about the 4th set of lights on 28). This should be Veterans Memorial Parkway with Rockingham Park Boulevard on your left.

Alternatively to above, if you came off Rte 93 at exit 1 you would be on Rockingham Park Boulevard, enter this this junction and go straight across onto Veterans Memorial Parkway and proceed as below.

Go to end of Veterans Memorial Parkway and take right onto Lawrence Road. Proceed to a T junction and take a left (still on Lawrence Road). The field is about a mile down on right near Mary Queen of Peace church (MQP). It's also called Michelle Park.