[6] The first elected officers were Trumbull, Day, Robbins, Thomas Church Brownell and Walter Mitchell.

[13] The Historical Society appointed Thomas Robbins as its first librarian because of his extensive book collection and antiquarian expertise.

[15] After the death of Robbins in 1856, Connecticut historians James Hammond Trumbull and Charles J. Hoadly contributed to the society's work through various published research and lectures.

[17] In 1893, the society hired Albert Carlos Bates as a full-time librarian and it was under his tenure that membership doubled, the annual income increased five-fold and the collection grew.

[18] To accommodate the expanding collection, the Historical Society bought a house on Elizabeth Street, which had previously belonged to the inventor Curtis Veeder, in the West End of Hartford.

[20] In the early 2000s, the organization hired Bruce Mau[21] and Frank Gehry to design a new museum near Trinity College, but lack of funds prevented the project from happening.