Father and son Chad and Will MacDonald dig up invasive roots with members of Cub Scout Pack 550 on Jan. 20 at Edith Moulton Park in Kirkland as volunteers for the day of service observance in memory of Dr. Martin Luther King Jr. Green Kirkland Partnership program coordinator Jeremy Jones said more than 100 people had registered to help with four service events at parks throughout Kirkland. Corey Morris/staff photo