Some info about his funeral:
his coffin was made from oak grown on the Sandringham estate and a plain brass plate was engraved "HRH Prince John Charles Francis, born July 12 1905; died January 18 1919"; the coffin had been brought overnight from Wood Farm and rested in the chancel
members of the royal family present were: George V, Queen Mary, Queen Alexandra, Princess Victoria, Princess Mary, Prince Henry & Prince George (both in uniform), Queen Maud and Prince Olav.
the mourners occupied their normal seatas in the chancel and between them rested the coffin, with the family and non-family wreaths grouped around
Canon Dalton & Rev AH Bowman conducted the service adn the choir sang 2 of the Prince's favorite hymns (New every morning is the Love and Now the day is Over) and at the close, the hymn Peace, Perfect Peace which had been personally chosen by King George
at the conclusion of the graveside service, the King, Queen and Queen Alexandra all dropped bunches of flowers on the coffin; the grave was lined with moss, evergreens and flowers
GV & QM sent a wreath in the shape of a cross of flowers and attached the handwritten card 'For our darling little Johnnie, from his sorrowing parents'. Queen Alexandra sent a cross of orchids, lilies and mums 'In remembrance of my darling little Johnnie, Grannie's precious grandson, whose memory will never fade. May he rest in peace for ever with the Lord, though we shall ever miss him sorely here on earth. From poor old Grannie, Alexandra.' There was also a wreath from his siblings. Louise, Maud, Toria and Olav sent a wreath for 'our darling little Johnnie'. Princess Alice of Athlone wrote 'For darling Johnnie from his loving Aunt and Godmother, Alice'. The staffs at York Cottage, the household of Queen Alexandra, the children of Wolverton and Sandringham and the Maharaja of Gwalior also sent wreaths.
Besides family, those present included Rev ACH Rice (rector of Wolverton), Lala Bill, some of the principal tenants of the Sandringham estate, Miss Carso ( a former governess), Mr May (personal attendant), the servants from Wood Farm, Mrs Grant (wife of the rector at Sandringham), Mr Beck (agent for Sandringham), several servants of the royal Households and Sir Alan Manby who attended the Prince.