There's not much I can add to this picture - the banner is up on one of the bungalows on Whinfield Road. The story was covered in the Northern Echo earlier this month. 4-year old Riley suffers from chronic granlomatus disorder (CGD), a condition which affects his body's ability to fight infection and which will force him to spend a life in and out of hospital if a match cannot be found.
Unfortunately it would appear I'm (just) too old to take part, but if you're aged between 18 and 40, in good health and weigh more than 8 stone, you can be tested to see if you make a match. The donor clinic will take place at Whinfield Primary School in Augusta Close on Wednesday June 6 from 4pm to 7pm.
For more information on how to register as a donor, log on to www.anthonynolan.org.uk or call 020-7284-1234.