Asher Wertheimer (d. 1918), considered one of the greatest connoisseurs in England, worked with his father and brother in their Bond Street art gallery. After their father died, the two brother separated and Asher kept the Bond Street gallery. He is well known for his 1898 purchase of the Hope collection of Dutch and Flemish paintings. In 1916, he announced his intention to donate his private collection of John Singer Sargent portraits to England.
"Asher Wertheimer Dead." The New York Times (11 September 1918): 13.