Who was the first equestrian to be inducted to the US Olympic hall of fame?

Through the last elections to the Hall in 2006, there are no equestrians that have been elected to the US Olympic Hall of Fame. Click on the 'US Olympic Hall of Fame Members' link below to see those elected. I think its J.Michael Plumb but I'm not sure.

According to Howrse, your answer is correct.

For Howrse: J. Michael Plumb