About 13,000 people marched or rallied on October 18 in the Pioneer Valley, Brattleboro and Keene. The protests were against Trump's policies. Here are the crowd size estimates for each city and town, based on first-hand reporting at the Brattleboro march, interviews with reputable people who were at the other protests, and other sources:
3,500 Brattleboro
3,000 Greenfield
3,000 Northampton
1,500 Amherst
900 Westfield, Massachusetts
400 Keene
300 Orange, Massachusetts
The organizers have a web site at www.NoKings.org.