That's Dan Clark. He's Katie's brother.

这是丹•克拉克。他是凯蒂的哥哥。

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The same might be asked about the many works here on the second floor by others (Dan Flavin, Jasper Johns, Alfred Jensen, Hannah Wilke, Gordon Matta-Clark) who exhibited in or near the city during the 1970s but were not based here.

WSJ: Wish You Were Here | Albright-Knox | They Shuffled Off to Buffalo | By Richard B. Woodward