He was also a Freemason, president of the Ticonderoga National Bank, and chairman of the Champlain Bridge Commission.
[4][5] Cyrus became board director and vice-president of Stone & Webster, an American engineering conglomerate in Boston, serving under president Edwin S.
Commander Edward Mortimer of HMS Byard, a graduate from Royal Naval College in London, and a notable yachtsman and businessman in New York.
He was made a member of the board of trustees of Ticonderoga's Moses Ludington Hospital for 30 years, and for the last 20, he was its chairman.
During his tenure, he was active on the Public Service, Canals, Conservation and Revision Committees.
[19] They were joined by Maj. Gen. Hanson Edward Ely, Col. John F. Madden, and other members of the Lake Champlain Bridge Commission, celebrating the restored unity between New York and Vermont.
[20] He was president of the Ticonderoga National Bank for many years, and a member of the board of education.