However, as biographer Seymour Slive has pointed out, the Frans Hals in question was not the artist, but another Haarlem resident of the same name.
His main achievement was the great international Frans Hals exhibition in 1962 and the scientific catalog that he published with it, that had contributions by Carla van Hees and the young Seymour Slive.
Slive, Seymour, Dutch Painting, 1600–1800, 1995, Yale UP, ISBN 0300074514
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