More than nine hundred members of the Massachusetts Bar and bench were trained in Innes' night law school.

[4][5] According to theatre critic Elliot Norton, "Charles H. Innes was considered the afternoon mayor of Boston,” due to his political influence [6] He was noted for his leadership of the Republican Party in Massachusetts.

He was known as a practical politician, and his leadership was indispensable to making Republicans such as Calvin Coolidge and Channing Cox governors of Massachusetts.

[7] In addition, Innes played a key role in securing passage of the bill that provided the funding for the construction of the Cape Cod Canal.

Charles Hiller Innes is interred in Forest Hills Cemetery, Jamaica Plain, Massachusetts.