The New York Times memorializes Charles Ryskamp who was director of both the Morgan Library and The Frick:

Mr. Ryskamp (pronounced RIZE-camp), a specialist in 18th-century British literature who taught at Princeton, was appointed director of the Morgan Library (now the Morgan Library and Museum) in 1969.

The choice was not as surprising as it might seem. In addition to his teaching duties, he was the curator of English and American literature at Princeton’s library. He had also been buying art since his early teens, building a substantial collection of Old Master and Romantic prints and drawings that would later be the subject of exhibitions at the Morgan and at the Yale Center for British Art.

Mr. Ryskamp made a number of highly important acquisitions at the Morgan. In 1973, he announced that the cellist Janos Scholz had donated 1,500 Old Master drawings from his collection, the largest in private hands in the United States. The gift included works by Leonardo da Vinci, Raphael, Titian and Bellini.

Charles Ryskamp, Director of Morgan and Frick, Dies at 81 (New York Times)