I dug several of these covers from various places online [see below] and the rest are scans from the misleadingly titled book The Cornell Widow Hundredth Anniversary Anthology: 1894-1994 (as said above The Widow ended in 1962 and this anthology was actually published in 1981 - the title was a humorous response to the 100 year anthology of The Widow's rival The Cornell Daily Sun).
April 1916
November 6, 1922
January 22, 1923
February 1923
Easter - March 31, 1923
December 1923
November 1925 by Waleter S Beecher
February 1926
March 26, 1926
Christmas 1927
May 24, 1928
May 1942 by Walter McQuade
March 1952 by Walt Kelly
March 1949 by Richard Koppe
by Charles C. Porter
1906-1908
1927-1928
& a few from the inside:
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several covers (though surprisingly not more) can be viewed online at Cornell University's Rare Book and Manuscript Collections [link]
the anthology and several issues at amazon [link]
a bound collection of 1922-1923 issues (with pictures) on ebay [link]
several issues for sale (with pictures) at Ruby Lane [link]