The Duncan Family Yo-Yo Collection consists of papers, photographs, advertising materials, scrapbooks, clippings and audio-visual materials. These materials trace the rise and fall of the companies ...

America owes its fascination with the yo-yo mainly to Chicago businessman Donald F. Duncan Sr., who spotted it while on a business trip to San Francisco in 1928. It was being used by Pedro Flores, a ...

CLEVELAND, Ohio -- It’s been 90 years of fun for Duncan Toys, an Ohio company known for its yo-yos. To celebrate, it’ll be slinging out a few yo-yo events in downtown Cleveland this summer. The ...

BENJIE SANDERS / ARIZONA DAILY STAR 1978 The words Duncan and yo-yo are almost synonymous. But when Tucsonan Donald Duncan Jr., whose father had created the original Duncan yo-yo, invented a new ...