I called my grand uncle - I often refer to him as Uncle B - and asked about this. He would know, he was newly active in 1952. The short answer is, "No, the Watchtower did not teach this." However, private speculation circulated fairly widely. He recalled a couple who had been Witnesses since the early 1930s or late 1920s telling a young mother that her three year old wouldn't start kindergarten because Armageddon would occur in 1954. Apparently people reasoned that the 40 year periods in Moses life were prophetic, and since 1954 was 40 years anti-1914, judgment was at hand. To his personal knowledge some were 'counseled' over the speculation.
What an odd bit of history.