1864 – Born on the 8th of July in New London. He was a United States Representative and Senator from Connecticut.
1885 – Brandegee attended the common schools, and graduated from Yale College.
1888 – He studied law, and was admitted to the bar and practiced in New London.
– He was a member of the Connecticut House of Representatives.
1889-1893 – He was corporation counsel of New London.
1894-1897 – He resigned in those positions.
1899 – He was a member of the State house of representatives.
1901-1902 – Served as speaker; he was again elected corporation counsel of New London.
– He resigned to become a Member of Congress.
1902-1905 – Brandegee was reelected to the Fifty-eighth and Fifty-ninth Congresses.
1904 – Brandegee was chairman of the Republican state convention and was elected as a Republican to the Fifty-seventh Congress to fill the vacancy caused by the death of Charles A. Russell.
1924 – HE died of suicide on the 14th of October in Washington D.C.