During the same year in which he resigned from that position , Dalton implemented the ambulance system in New York .
Dalton became the sanitary superintendent of the New York Metropolitan Board of Health in March 1866 .
During the same year in which Dalton resigned from that position , Dalton implemented the ambulance system in New York .
Dalton became the sanitary superintendent of the New York Metropolitan Board of Health in March 1866 .