Eugene DeLeon Sr. was bitten around 1:00 p.m. while handling snakes in front of a crowd and flown by helicopter to a hospital in Corpus Christi, where he died later that night around 9:00, Freer Police Chief Hector Doria told KIII.
Texas is home to 10 species of rattlesnakes and DeLeon was always just "a call away for local residents to assist with removing snakes from their property," the Freer Chamber of Commerce, which put on Saturday's Rattlesnake Roundup, said Sunday.
DeLeon's sister, Monica Dimas, asked for friends and family to keep her brother's loved ones in their prayers, saying that her brother died "doing what he loved doing."
"He had a passion for snake handling at the rattlesnake round up in Freer," Dimas wrote in a post on Facebook.
"After many years of handling these things today was not your day with them."