![An attendee signs the guestbook for the celebration of life for Jean-Nickolaus Tretter on Friday, June 23, 2023, in the Elmer L. Andersen Library. (Photo/Adria Carpenter)](https://libnews.umn.edu/wp-content/uploads/2023/06/230623_awc_Tretter_273-copy-1-1024x683.jpg)
Jean-Nickolaus Tretter wasn't just a collector and part-time hoarder. When other LGBTQ people couldn't speak…
Adria CarpenterJune 27, 2023
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