Fredericka D. Perry and Mr. Irvin Duckett, President and Members of the COUNSEL OF NEGRO EMPLOYERS OF GREATER KANSAS CITY
These are the 1 indexed letters between Fredericka D. Perry and Mr. Irvin Duckett, President and Members of the COUNSEL OF NEGRO EMPLOYERS OF GREATER KANSAS CITY, with both parties read from the letter itself.
Listed in the derivation’s order: year, then letter ID; undated letters first. Not chronological within a year.
How this list was derived
Tier 1: derived from the published letters index, the reviewed correspondent groups and the reviewed place list by the rules below — no inference, no model. Post-fold (sitting 2026-09-05): 169 reviewed correspondent groups; 2090 printed forms remain groups of one below the review floor, disclosed. Corpus version 5db27b8755bd.
Rule: letters carrying both parties (the boundary sentence), grouped by the unordered pair of correspondent groups; see the builder
SELECT id FROM letters WHERE (sender_group = :person_a AND recipient_group = :person_b) OR (sender_group = :person_b AND recipient_group = :person_a) ORDER BY year, id