Fourth of July festivities on tap for this weekend EAST BROOKFIELD — By Monday evening, the first glimmer of the East Brookfield’s Fourth of July celebration could be seen at Connie Mack Field, where rides were being hauled in and assembled, and booths were already being set up, as the “Fun Slide” flashing lights twinkled in anticipation of the fun-filled festivities. The celebration will be held from 6-10 p.m.