Shaen, Margaret J Manuscript. Contains five letters to K Pearson, comprising one letter dated 1922 returning four negatives (enclosed) showing dogs and puppies, and four letters dated 1928-1929 on the death of Maria S Pearson, offering an inscribed book of Charles Darwin's on worms, on Leonard and Horace Darwin. Also contains six letters to M S Pearson, four dated 1891-1896 inviting Maria and Karl to Leith in Scotland in summer 1891, photos of Sigrid with Karl, agnosticism, losing a "common language" and misunderstandings between them with reference to social advance of women, and letters dated 1927 on Maria's illness and being housebound, and her own immobility and domestic challenges. 1889-1930