When Yoko Ono married John Lennon, she wore a pair of Keds. Photos from the company’s archives also show the iconic white canvas shoes with the blue rubber logo on the feet of Jackie Kennedy, Marilyn Monroe, Katherine Hepburn and Ginger Rogers. But to market the shoes — which celebrate their 100th birthday this year — to today’s customer, Keds is also turning to Taylor Swift, Ciara, Allison Williams, K-pop star Krystal Jung and wearable tech pioneer Billie Whitehouse. “What truly does keep me up at night is our customer,” said Emily Culp, chief marketing officer for Keds. “I think it’s an honor to try and connect with her, and it’s an amazing intellectual and emotional challenge.” Wearing a pair of thick-soled black Keds, Culp spoke about the brand’s efforts to connect its heritage with the modern consumer at the third annual Retail and Consumer Packaged Goods Summit held Tuesday and Wednesday in New York. The event was organized by Knowledge at Wharton, Wharton’s Jay H.…