I owe Aunt Sammy an apology. She’s not just my Aunt Sammy, but yours, too—the wife of our Uncle Sam. She starred in a popular radio show way back when, as radio had just begun making waves. The US Department of Agriculture, big into radio programming for farmers, dreamt her up in 1926 to give farmers’ wives a view of the world beyond their fences. As radio stations sprang up everywhere, more than just farmers tuned in to hear the charming Aunt Sammy chat about recipes and household tips. So what if she wasn’t real? It was before networks, so an actress at each local station played Aunt Sammy according to a script. With…