The Royal Astronomical Society's own centenary history corroborates Thomas Galloway served as one of its Secretaries in the mid-1840s

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claim-galloway-royal-medal-astronomer-1848 records, per the Wikisource DNB entry alone, that Thomas Galloway was "one of the two secretaries" of the Royal Astronomical Society "in 1847." History of the Royal Astronomical Society 1820–1920 (ed. Dreyer & Turner, published by the Society itself in 1923, built from its own Council Minutes and Annual Reports) names Galloway twice in its 1840–1850 chapter, in each case in a context that only makes sense if he was a sitting Secretary or Council officer at the time. Describing a May 1845 exchange over absorbing the Mathematical Society of London: "It was arranged that a visitation should take place by the President and Secretaries, Smyth, De Morgan, and Galloway." Describing the Council's November 1847 nominations for that year's Medal Testimonials: "The proposals were made by Airy and De Morgan, except Weisse's name, which Galloway added."

This corroborates, from an institutional source independent of the DNB, that Galloway was functioning as one of the Society's Secretaries around 1845–47 — consistent with the DNB's single-year "1847." The book's own 1850 officer list ("the secretaries A. De Morgan... and Capt. Manners") shows Galloway had left the post by February 1850, also consistent with the DNB. Graded Tier 2 rather than Tier 1: this is the Society's own narrative history, written by later scholars from the primary Minutes rather than the Minutes themselves — one step removed from the raw record, but the institution's own account, not an outside retelling.

The same volume also carries an explicit officer roster (added by audit, 2026-08-08). Page 285 of the scan sets out appendix lists of the Society's officers under the printed headings "III. SECRETARIES.", "IV. FOREIGN SECRETARIES.", and "V. ASSISTANT SECRETARIES." — all three retrieved verbatim from archive.org's full-text index of the same djvu text this note cites. "T. Galloway" appears three times in the Secretaries list and once in the Foreign Secretaries list. The Foreign Secretaries entry was retrieved verbatim as a complete line: "T. Galloway . » 1842-43". The Secretaries entries are harder to quote: the OCR split that table into a name column and a date column, so no single line pairs a name with its dates. Pairing them by the index's bounding-box coordinates (a constant ≈71 px line pitch, cross-checked at three independent points against the book's own narrative statement that De Morgan "was Secretary 1831-39 and 1847-55") yields Galloway as Secretary for 1839–41 and 1843–45 — both of these confirmed by directly-boxed name and date cells — and a third term aligning with 1847–48, which is reconstruction from row position rather than retrieved text and is recorded here as inferred, not read. The roster does not bear on Galloway's vice-presidencies, which remain open per claim-royal-society-record-confirms-galloway-1848-medal.