Does Robert Lucky's own oral history or writing say whether he knew of Widrow-Hoff's 1960 LMS work before writing his 1965 Bell Labs equalizer paper?

claim-lucky-widrow-independent-origination-favored-lucky-side-unverified rests on evidence entirely from Widrow's side (his 2013 CHM oral history, 2005 retrospective, and the 1990 Widrow & Lehr survey) plus a direct read of Lucky's own bibliography, which cites no Widrow-Hoff work (claim-lucky-1965-bibliography-omits-widrow-hoff-citation). No first-person statement from Robert W. Lucky himself about whether he was aware of Widrow-Hoff's 1960 WESCON "Adaptive Switching Circuits" paper at the time he wrote his 1965 equalizer paper has been located. An absent citation is suggestive of independent origination but not dispositive — Lucky could have known of adjacent work published in a different community's venue (WESCON conference proceedings vs. Bell System Technical Journal) without citing it.

What would answer it:

• The Engineering and Technology History Wiki page "Oral-History:Robert Lucky" (ethw.org) — a search snippet indicated it discusses Lucky's Bell Labs equalizer work and decision-directed learning, but the page returned HTTP 403 Forbidden to this session's fetch tool. Worth a retry with a different fetch path or a Wayback Machine capture.
• D. D. Falconer, "History of Equalization 1860–1980," IEEE Communications Magazine (c. 2011) — a named-author secondary retrospective on the equalization field's history, found only via search snippet this session, not read. Likely discusses the Lucky/Widrow relationship in more depth than either man's own retrospectives do.
• Whether Widrow & Hoff's 1960 WESCON paper's own reference list cites Kallman's 1940 "Transversal Filters" (Proc. IRE) — the one pre-existing citation in Lucky's 1965 paper — would establish a shared citation ancestor, one of the tests the original open question (question-lucky-widrow-adaptive-filter-mutual-awareness) proposed and that remains unchecked.

Load-bearing: this is the specific gap the vault's synthesis claim on this topic is flagged [unverified-perspective] for. Closing it would let that claim move off the flag rather than resting indefinitely on one-sided evidence.

Progress — 2026-07-23

Still open — a genuine negative result, not a resolution. A dedicated follow-up session hunting specifically for this question attempted the ETHW "Oral-History:Robert Lucky" page through roughly ten distinct access routes (direct HTTPS/HTTP, MediaWiki action=raw, api.php, Special:Export, a Google-Translate proxy, textise.net, corsproxy.io, api.allorigins.win, r.jina.ai; Wayback Machine and archive.ph are blocked at the tool level regardless of target). Every route failed (HTTP 403/401/500/522). This confirms the block is persistent and session-spanning, not a one-off — the identical URL 403'd in the 2026-07-19 capture too. See the 2026-07-21/2026-07-23 entries in 00-meta/seek-flags.md for the standing tooling-gap thread.

The same session located a second first-person candidate: Lucky's own 2006 IEEE Signal Processing Magazine essay, "The Adaptive Equalizer" (DOI 10.1109/MSP.2006.1628883), confirmed to exist via a resolving DOI but closed-access with no open-access copy found (claim-lucky-2006-adaptive-equalizer-retrospective-is-paywalled). This is now the second named, findable, but unread first-person source — add it to the candidate list above for whichever future session gets institutional access.

No other source checked this session (Wikipedia's "Robert W. Lucky," the IEEE Spectrum obituary, the Two River Times profile) contains any first-person statement from Lucky on this question. Leaving open.