Morphing memories (as I am defining them) are ones that change character entirely. I am not interested in memories in which small details might be misremembered because that is normal for us humans. For an example of a morphing memory, as I define it, if Buell Frazier had really seen LHO walking up Houston Street after the assassination, I don’t think that there is any way he could have forgotten that when he swore that he didn’t see LHO after 11:00 am when he made his affidavit on 11/22/63.
Also, the WC testimonies included questions by the investigators which were meant to bring out additional details that might not have been included in earlier statements. So, that type of thing isn’t really a morphed memory, as I am defining it.
In 1968, during an interview (along with Penn Jones) with the L.A. Free Press, Roger Craig was asked about the Tippit shooting. Craig told the interviewer that the shooting occurred at 1:45.
Jones immediately corrected Craig, informing him that the shooting occurred around 1:15. Craig responded with "Oh? Is that right? Okay." (or words to that effect, I'm going by memory)
The bottom line is, in 1968, Craig obviously had no idea what time the Tippit shooting occurred.
Then, in the early 70's when writing his manuscript, Craig tells the story of being in Dealey Plaza and hearing of the shooting of the police officer in Oak Cliff. In the scenario, Craig supposedly looks at his watch and notes that it said the time was 1:06.