TD,
From what I recall, you are correct in stating that they believed the Great Tribulation had already begun and they were living through it! However, if I’m not mistaken, they changed this view circa 1962-1964. Not that this is a big deal, but they preached it had began in 1914. I was a young boy in the 1960’s when the change was made, and I recall two pioneer sisters (old-timers) coming over the house and explaining to my mom what she missed by not attending the DC (my dad would not allow us to attend). The two sisters were shaken by the change! I guess at the time, it was as monumental as the more recent “generation” change.
With kindly regards,
Cyber