Made his first puppet at age 10, using the lining of his father's coat to create fur
Put on puppet shows at Baltimore's Inner Harbor as a young teen
Started his TV career while in his teens on WMAR, a Baltimore TV station, and WTOP, a Washington, D
C
, station
Met Muppet designer Kermit Love while in his teens; Love was so impressed with him that he invited him to perform with the Muppets in the 1979 Macy's Thanksgiving Day parade
First visited the Sesame Street set while in his late teens
Worked as a puppeteer on Captain Kangaroo in the early 1980s
Although Elmo had been around since 1979, it wasn't until Clash took over the red furry fellow in 1984 that the character's popularity went through the roof
Released his autobiography, My Life as a Furry Red Monster: What Being Elmo Has Taught Me About Life, Love and Laughing Out Loud, in 2006
Featured in Being Elmo: A Puppeteer's Journey, a 2011 documentary