M. E. Ogborn

Author of Equitable Assurances: The Story of Life Assurance in the Experience of the Equitable Life Assurance Society, 1762–1962 (1962) — the institutional history of the mutual assurance society founded on Dodson's age-scaled premium work, and named repeatedly across this vault's Amicable Society research cluster as the strongest still-unread primary-adjacent source for the founding-era societies' internal mechanics. No accessible full text has been located online as of 2026-07-25, and Ogborn is now one of only two sources in this cluster that remain genuinely access-blocked (the other being Clark 1999) — the other leads once filed alongside them turned out to be free, or blocked by a WAF rather than a licence. The Amicable dividend question it was held for is now answered without it, from Walford 1885 (claim-amicable-society-1706-fixed-dividend-fund-divided-equally-per-death). The Dodson-causation question it was then held for was also answered without it, on 2026-07-26, and in a way that lowers this book's expected value: the ODNB's entry on Dodson lists Ogborn as its own first source and still reports the rejection-to-design causation as hearsay ("It was said"), while the freely-hosted Journal of the Institute of Actuaries review of Ogborn summarizes his account of Dodson's motivation without mentioning the Amicable at all (claim-dodson-rejection-causation-is-reported-tradition-not-documented). Whatever Ogborn says, it did not persuade his most careful reader to assert the link. He remains directly unread — HathiTrust holds the book (catalog 001741155) behind a Cloudflare challenge that no institutional IP clears — but no open question now depends on him.

References

• claim-amicable-society-1706-fixed-dividend-fund-divided-equally-per-death
• claim-premature-negative-finding-amicable-dividend-was-an-unlocated-installment
• claim-dodson-rejection-causation-is-reported-tradition-not-documented — the question he was held for, answered without him
• 2026-08-24: The Oxford DNB's entry on William Morgan cites Ogborn's Equitable Assurances (1962) as its own source for the claim that Morgan's Equitable mortality statistics "furnished data for the amendment of the Northampton tables" — a second, independent question this book would likely settle if obtained, on top of the two it was already held for. (claim-price-northampton-table-overestimated-mortality-favouring-insurers, entity-william-morgan)