In May 2008, Cllr Matt Bennett won Stockland Green for the Tories for the first time in 22 years on the largest swing in the city. Report here. The Labour incumbent at that time was Penny Holbrook who works for Sion Simon.
Either Sion or one of his staff seems to be caught in the past. If you visit his latest web entry, the author labels the photo above as sion-simon-mp-brookvale-centenary-with-cllr-penny-holbrook.jpg. Let's hope this error is corrected so that Penny can't be accused of impersonating a councillor.
Update Sat 25th - corrected.