unrecognized_authors.csv has redundancies

`/h/j/p/a/r/find-inactive-members$ wc -1 unrecognized_authors.csv`

` 1470`

`/h/j/p/a/r/find-inactive-members$ sort unrecognized_authors.csv | uniq | wc -l`

` 39`

Start in find-inactive-members/unrecognized_authors.csv and compare the file's row count with the sorted unique count using the commands shown. Determine which duplicate entries should be retained or removed; done means the CSV no longer contains the reported redundancies and the counts verify the result.

Written by the indexing model from the issue text.