Around 1,000 people gathered on Sunday to help raise money to eradicate Alzheimer's disease during largest-ever Seacoast Walk to End Alzheimer' at Strawbery Banke. Participants held color coded pinwheels to show the various ways the disease has affected their lives. Those with yellow pinwheels were caregivers; blue pinwheels signified someone who was diagnosed with Alzheimer's; those with purple pinwheels lost loved ones to the disease. Orange pinwheels signified those who have no personal connection to the disease but wanted to help out none the less. Ralph White, a North Hampton resident and member of the board of directors with the Massachusetts/New Hampshire Chapter of the Alzheimer's Association said the funds raised Sunday would help achieve a goal of eliminating the disease by 2025.