Brian, 63, first gave blood
in 1967 after his mother needed a transfusion following childbirth.
Mr Gibbon, who attended the dinner with his wife Pat, first gave blood
when he was 18 and has barely missed a session since.
Mrs Barker, who first gave blood
in 1979, said: "People have got to get over this anxiety of giving blood for the first time but the secret is to get someone to go along with you for moral support.
One donor who gave blood
at a Cardiff University session this week was 19-year-old English student Katy Adams.
In the wake of the terrorist activities on the East coast, thousands of western Washington residents gave blood
Dianne Prince, a Reseda resident who works in Kaiser's insurance department, said she got woozy a previous time she gave blood
Nearly 700 volunteers who gave blood
over the July Fourth holiday weekend at the American Red Cross - NBC 10 Holiday Hero bloodmobiles helped boost the area's blood supply.
He signed up as a bone marrow donor at the clinic and also gave blood
for the first time.