Thomas Handasyd Perkins, a significant figure in Boston's commercial and philanthropic circles in the late 18th and early 19th centuries, was involved in various business ventures and philanthropic activities. However, there's no widely known or recorded direct involvement or funding by Thomas Handasyd Perkins specifically for the construction of a railroad from Boston to Quincy.

The development of railroads during that era involved multiple investors, entrepreneurs, and government support. While individuals like Perkins might have been involved in businesses or investments related to transportation and infrastructure, such as railroads, attributing the funding or direct involvement in a specific project requires substantial historical documentation or records, which might not have explicitly singled out his personal funding for that particular railroad.

Railroad history and its funding sources during that time were often complex and involved multiple investors and financial backers. If there are specific records or historical documents pointing to Perkins' direct involvement in funding the Boston to Quincy railroad, it might be a lesser-known aspect of his contributions. However, in mainstream historical narratives, his involvement in this specific project might not be as prominently documented.

Thomas Handasyd Perkins, a prominent figure in Boston during the late 18th and early 19th centuries, was involved in various philanthropic and business activities. He supported and contributed to several institutions, particularly those focused on education and charitable causes. Some of the institutions and initiatives he was associated with include:

1. Boston Athenaeum: Perkins was among the founding members and provided support to this independent library and cultural center in Boston.

2. Massachusetts General Hospital: He was involved in the founding and support of this hospital, one of the oldest and most renowned hospitals in the United States.

3. American Board of Commissioners for Foreign Missions: Perkins contributed to this organization focused on spreading Christianity and education in foreign lands.

4. Massachusetts Horticultural Society: He was involved in supporting this society dedicated to horticulture and agriculture.

5. Boston Museum: Perkins was involved in the establishment of this cultural institution, which later became the Museum of Fine Arts, Boston.

6. Philanthropic endeavors: He supported various charitable and educational initiatives, contributing to schools and social causes.

These are some of the institutions and initiatives associated with Thomas Handasyd Perkins. His philanthropic activities were diverse and aimed at supporting cultural, educational, and charitable endeavors in the Boston area and beyond.