Size 1:
Queen Elizabeth The Queen Mother (mother of Elizabeth II)
Queen Mary (grandmother of Elizabeth II)
Size 2:
Princess Margaret, Countess of Snowdon (younger sister of Elizabeth II)
Mary, Princess Royal and Countess of Harewood (aunt of Elizabeth II)
Princess Alice, Duchess of Gloucester (aunt of Elizabeth II)
Princess Marina, Duchess of Kent (aunt of Elizabeth II)
Princess Alexandra, The Honourable Lady Ogilvy (first cousin of Elizabeth II)
Princess Alice, Countess of Athlone (great-aunt of Elizabeth II)
I note that the above number eight, while the quote below lists seven, two large and five smaller badges being made. All seven were worn at the 1953 Coronation. 
After Queen Mary's death, her size one badge was worn by Princess Margaret. Were there eight badges made? Or was one, possibly Princess Alice Countess of Athlone, given Princess Margaret's size two badge after Queen Mary's death?
Previous Message
"The Family Order of Queen Elizabeth II is suspended from a yellow silk watered ribbon the same size width of her father's order, and has been made in two sizes. The larger size was given to Queen Mary and Queen Elizabeth the Queen mother. These and five smaller badges were given at Christmas 1952."
Risk, James; Pownall, Henry; Stanley, David; Tamplin, John (2001). Royal Service (Volume II) . Lingfield, Surrey: Third Millennium. pp. 36.
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on April 3, 2023, 11:21 pm, in reply to "