Cornelius V. DeForest died yesterday morning from paresis, at his residence, 17 East Forty-seventh-street. He was born 70 years ago in this city, and from the time he reached manhood was for many years prominent in New York’s business community. For a long period he was engaged in the oil trade, and upon giving it up became purchasing agent of the New York Central and Hudson River Railroad, an office he held for many years. For the last three years he had been a special partner in the Stock Exchange firm of Colbron, Chauncye & Co. Ill-health, however, had kept him out of active business for many months. Mr. De Forest leaves a widow, a daughter, Mrs. William T. Colbron, and a son, C. Eugene De Forest. Funeral services will be held tomorrow afternoon at 2 o’clock. The burial will be in Greenwood.