In June 2019, she succeeded the Queen as patron of the Royal Photographic Society. In January 2020, she and other photographers took part in an exhibition to mark the 75th anniversary of the end of the Holocaust. In July 2019, she lent her support to Backyard Nature, a campaign created to inspire "children, families and communities to get outside and engage with nature". In August 2019, the Duke and Duchess of Cambridge competed in the King's Cup yachting regatta to raise money for eight different charities. In December 2019, she succeeded the Queen as Royal Patron of Family Action. In May and June 2020, the Duke and Duchess, alongside their children, delivered food parcels made on the Sandringham Estate to local isolated pensioners during the COVID-19 pandemic. In May 2020, the Duchess as the patron of the National Portrait Gallery launched "Hold Still", a project to capture people's life during lockdown, which garnered 31,000 submissions. In July 2020, the exhibition was released, with the final 100 photographs being displayed online. In October 2020, the portraits were displayed on 112 public sites, including billboards, murals, and posters, across 80 towns and cities. The online exhibition collected over 5.2 million page views. Later it was announced that the photographs would be published in a book titled "Hold Still: A Portrait of Our Nation in 2020", the foreword to which will be written by Catherine. In December 2020, the Duke and Duchess became joint patrons of NHS Charities Together. The Duchess discreetly volunteered with the Royal Voluntary Service during the COVID-19 pandemic.