Bob Ramsdell [1911-1981] gave Sharon Tarr his part of the list at one of the Spooner history meetings held at her house between 1976 and 1981. Her information starts with Rose Berg in 1980. Ramsdell did his part by doing a lot of digging, contacting Washington, D.C., and elsewhere to find what old records could tell him.
Tarr used the internet, Spooner Advocate, Ancestry.com (which has postmaster records), and called or e-mailed postal-savvy friends who helped to fill in the gaps. Her Spooner High School classmate Frank R. Rich Jr. helped with the recent information.