BLOOD Donor sessions will be held in Bolton on Wednesday, April 30, also Wednesday, May 7, at Walker Memorial Hall, Ridgeway Gate; in Leigh on Thursday, May 1, at St Joseph's Church, Chapel Street, and in Farnworth on Tuesday, May 6, at Trinity Methodist, Market Street, between 1.30pm-3.30pm and 5.30pm-7.30pm on each occasion.