After her husband's death in 1967, Clarke began writing a memoir, entitled I Had a Father Too (or the Mustard Spoon); it was completed in 1973 but never published.
Despois da morte do seu marido en 1967, Clarke comezou a escribir as súas memorias, tituladas I Had a Father Too (or the Mustard Spoon); que finalizou en 1973 pero que non foron publicadas.