Photo by the Rosenberg Library Your Great-Uncle Harry built Fort Worth: that’s the story I was raised on. We were New York Jews, unobservant, but gathering at my grandmother’s every Friday nonetheless, my grandfather with a glass of Manischewitz in his hand. Family stories came in fragments. My great-uncle was Harry Friedman, my grandfather’s older brother; my grandfather had changed his last name to Franklin, because he knew he’d do better on Wall Street if he didn’t have a Jewish name. Another brother took the last name Donald, which can make family history tricky to track down. Anyway, who wants...