Marie Gertrude Rand

(October 29, 1886 – June 30, 1970) was an American research scientist who is known for her extensive body of work about color perception. Her work included "mapping the retina for its perceptional abilities", "developing new instruments and lamps for ophthalmologists", and "detection and measurement of color blindness".[1] Rand, with LeGrand H. Hardy and M. Catherine Rittler, developed the HRR pseudoisochromatic color test.[2]