From online Investigator Magazine No. 51
JW prophecies are known to have failed for many other dates.
These include 1878, 1881, 1906/1907, 1912, 1914, 1915, 1918, 1920, 1924, 1925, 1928 , 1930s, 1935/1936, 1942,1940s, 1970s.
Then, a different source:
TIME magazine March 31, 1930: "...An erroneous prophecy that the year 1928 would provide a cataclysm -- "Nations will battle; the dead will be dung on the earth -- upset considerably the Bible Students' calculations, but the major tenets of their belief are as yet unshaken."
Other than those references, I haven't been able to find anything verifiable -- no WT scans, no source month / year.
Anyone else find anything of substance?
Len Miller