Minicon 3 was held 3–5 April 1970 at the Dyckman Hotel (Minneapolis). It was chaired by Jim Young and had a membership of about 130.
Who were the guests of honor? Good question. None of the publications below lists them. The historical table in the Minicon 10 program book lists Poul Anderson, Gordon R. Dickson, and Clifford Simak. All future historical tables are presumed to use this as a starting point. Gordy and Cliff are listed as panelists in the program book. While Poul Anderson isn't listed at all in the program, Richard Tatge remembers him being there. Anthony Tollin further reported to the archivist in Jan 2015 that Rusty Hevelin was also a guest of honor, recruited at the last minute.
Steve Popper, Secretary Marge Lessinger, Treasurer Joel Lessinger, Auctioneer Fred Haskell, Publications Director Karen Haskell, Asst. Publications Dr. Linda Lounsbury, Registration Ken Fletcher, Art Coordinator Jim Odbert, Art Show Director Walt Schwartz, Bookseller's Room Frank Stodolka, Party Committee Chairman John Kusske, Observer
Here is the program book in PDF (8 MB), or the same, but lower quality and a much smaller download (400 kB).
Here's a text-only transcription.
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And here are individual page images, which are available in a range of qualities and file sizes. Most people want the third column, in which the files have been substantially cleaned up to remove the grain of the paper, bleed through from adjacent pages, etc., but are still plenty high resolution:
|High res, cleaned
|Lower res, enhanced
|Front cover||Front cover||Front cover||Front cover|
|page 2||page 2||page 2||page 2|
|page 3||page 3||page 3||page 3|
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|back cover||back cover||back cover||back cover|
Progress Report 2
Here's the second progress report in PDF and in plain text. And here are the page images:
Presumably, there was a Progress Report 1 (although we wouldn't put it past our former selves to have numbered things strangely). We don't have a copy in the archives, so if you have one, please let us know. Judging by the date of Progress Report 2 (a month before the convention), it was probably the last one.
Here's a flyer advertising Minicon 3. And here's the raw scan of the same. The scan is of the original and there seems to have been something pasted on (where it says "bound!") that has been lost. Here's the text of the flyer.
Here's another flyer. And here's the raw scan of the same.
Ad in St. Louiscon Program Book
Here's the ad for Minicon 3 that was published in the 1969 Worldcon Program Book. And here's the text of the ad.
All Minicon 3 materials on this page are in the public domain due to having been published between 1923 and 1977 without a copyright notice.