Wightman was very active in the Massachusetts Charitable Mechanic Association.
 Wightman was elected a trustee of the Association in 1850, he served as a trustee for three years.
 After serving as a trustee Wightman served for three years as vice president and the next three as president of the Massachusetts Charitable Mechanic Association.

On September 30, 1857, while serving as president of the Massachusetts Charitable Mechanic Association, Wight laid the cornerstone of Boston's Mechanics' Hall.
Wightman was very active in the Massachusetts Charitable Mechanic Association.  Wightman was elected a trustee of the Association in 1850, he served as a trustee for three years.  After serving as a trustee Wightman served for three years as vice president and the next three as president of the Massachusetts Charitable Mechanic Association.
On September 30, 1857, while serving as president of the Massachusetts Charitable Mechanic Association, Wight laid the cornerstone of Boston's Mechanics' Hall.
Joseph Wightman