Margaret Jennings British scientist (1904–1994) Parents Florence Annie Alexandra Tapling Thomas Fremantle, 3rd Baron Cottesloe Children Siblings Bride Faith Louisa Fremantle Florence Mary Fremantle Edward St. John Fremantle Christopher Evelyn Fremantle Thomas Francis Halford Fremantle Katharine Fremantle John Fremantle, 4th Baron Cottesloe Partners Howard Florey