Lescher established his career in the publishing industry as an editor. He climbed his way up and obtained the title of editor-in-chief at Henry Holt & Company. During his tenure at Holt, he edited the works of legendary poet Robert Frost, short story writer Wolcott Gibbs and memoirist Alice B. Toklas.
Here’s more from The New York Times: “When Mr. Lescher began his literary agency in 1965, his reputation for aesthetic insight and painstaking attentiveness to writers made him highly sought after…[Lescher's] clients included Frances FitzGerald, Benjamin Spock, Paula Fox, Madeleine L’Engle, Andrew Wyeth and Georgia O’Keeffe. Isaac Bashevis Singer, having served as his own agent for many years, hired Mr. Lescher in 1972, six years before Singer would receive the Nobel Prize in Literature.” (via Shelf Awareness)