Letter from Helen Mercer to Margaret Mercer Dawson. Archivist's note suggests that this letter is likely misdated (actual date 1849), because the death of Margaret's son John Cosmo occurred in 1849.

Letter from David Walker to Margaret Mercer Dawson. Includes a circular published by William Thom, announcing the transfer of his business to his current partner, Dr. David Walker, dated 27th February, 1843.

Letter from David Milne Home to John William Dawson, written from Edinburgh.

Letter from Peter Bell to Margaret Mercer Dawson.

Letter from Margaret Dawson to Anna Harrington.

Letter from Arch. Geikie to George Mercer Dawson, written from Edinburgh.

Letter from David Milne Home to John William Dawson, written from Edinburgh.

Letter from Anna Dawson Harrington to Margaret Mercer Dawson.

Letter from Walter Mercer (Margaret's brother) to Margaret Mercer Dawson.