Anna Cecilia [Celia or Caelia] Doddridge (3 July 1737 -14 August 1811) (she signed her letters as “Celia,” and was always referred to by that appellation as well by other family members) was the youngest surviving daughter of Philip and Mercy Doddridge, and, like her sister Mercy, never married, although as these letters reveal, she was briefly courted by a Mr. Cooper, it appears, in 1767-68. John Humphreys writes of Celia, that despite her "equal piety" she possessed "less mental activity than her sisters, [and] had an affectionate cheerfulness of manner which deeply endeared her to her friends" (Diary and Correspondence, vol. 5, p. 534).