The charity is calling on the Government to provide better support for women who are stuck on the bottom rung of the career ladder.
Research by the YWCA shows that, among people who were poor in childhood, women are twice as likely as men to still be poor at the age of 30.
It also found that 75 per cent of working women work in five types of low-paid jobs - as caterers, carers, cleaners, cashiers or clerical assistants.
Dewberry says: "I strongly believe in equal opportunities for all, regardless of gender, race or background."
Yoko Ono, the widow of John Lennon, has granted permission for Imagine, the former Beatle's classic peace anthem, to be used on an album to raise money for Amnesty International's work in war-torn Darfur.
The song will appear on Instant Karma: The Campaign to Save Darfur, an album of Lennon covers by the likes of U2, REM and Aerosmith.
Ono says: "It's wonderful that, through this campaign, music that is so familiar to people of my era will now be embraced by a whole new generation. John's music set out to inspire change. In standing up for human rights, we really can make the world a better place."
Arabella Weir, the comedian, is supporting National Childminding Week, which began on 16 June and runs to 23 June.
National Childminding Association members have been set a collective challenge of speaking to 250,000 parents about the support that registered childminders can provide.
Weir says: "As someone who uses a registered childminder, I'm very aware of the support she gives to my children and the whole family."
Ken Hames, the TV presenter and former SAS major, is supporting Scope's Time to Get Equal Week this week, which aims to fight discrimination against people with disabilities.
Hames has just finished filming his third series of Beyond Boundaries, the BBC TV programme in which people with disabilities take part in challenging expeditions.
Hames says: "It shocks me that society can still discriminate against people with disabilities the way it does."
Former England goalkeeper David Seaman has supported the Cystic Fibrosis Trust, of which he is a patron, for more than a decade. He became involved with the charity after meeting a boy with cystic fibrosis who wanted to be a professional footballer.
Last month, he presented an award in the sporting category at the charity's annual Breathing Life Awards, which recognise the achievements of children and young people with the disease. This year, he chose the trust as the beneficiary charity of his annual Safe Hands celebrity golf tournament.
Sarah Guthrie, director of fundraising at the trust, says: "It is a real boost to families living with the disease when a household name supports us. The time that a celebrity donates is extremely valuable."
Seaman says: "The Breathing Life Awards is a very special event in my calendar and I am proud to be involved with the Cystic Fibrosis Trust."