Christina Maria Cornelia Wiegman (“Tia”) b. Amsterdam March 13, 1913. Lived and worked there, in France, Bergen (N.H.), Laren (N.H.); since 1964 in Amsterdam. Married 7-11-1934 in Amsterdam to PJFM Worm. Pupil of the painter family Wiegman. Watercolors, draws (also pen drawings) and made lithographs and woodcuts of botanical subjects.