Mme de Lacour was born in 1896 and lived 100 years. She founded the harpsichord class at the Conservatoire de Paris in 1955. She was a student of Wanda Landowska. According to the English Wikipedia page, she “helped to make harpsichord music fashionable”, whatever that means. At the moment, it seems that Mme de Lacour does not have a fanpage on the net, but a few soundfiles of her are available on YouTube.