A midwife from Leeds is part of a team fundraising to build maternity clinics in Bangladesh.
Singer Myleene Klass is backing the Save the Children campaign.
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The four people who were all related were killed on the A64 near Malton as they returned from a wedding in Leeds.
Sarah Champion quit in June as 172 Labour MPs backed a vote of no confidence in the party leader - but she has now asked for her job back.
During a visit to the island of Kos, Duncan followed the same route Christine Needham took with her grandson