Updated

For 50 years, Bill Conroy has been rolling up his sleeves to donate blood.

The first time was in Brooklyn, N.Y., back in 1961. On Monday he reached the 100-gallon milestone at The Blood Alliance's Orange Park center in Jacksonville.

Conroy is the first 100-gallon donor in The Blood Alliance's 69-year history. Valerie Collins, the agency's chief operating officer, says there are "not many around the country."

Conroy, a self-employed house painter who moved to Florida in 1988, stops by for a 90-minute visit every two weeks to donate platelets. He says he donates because it's the right thing to do.