dont worry, all you need to nkow for pattern of memory recovery following retrograde amnesia is (from VCAA 07 assessment report):
• a gradual shortening of the period of memory loss (the fact that he would usually remember the most distant
events first is correct but was not required in answers)
• he is likely to permanently forget events immediately prior to the accident
• different aspects of memory recover at different rates, for example, episodic faster than semantic
• a gradual increase in the rate of recovery as newly rediscovered memories cue (or trigger) recall of other items
from the semantic network
• possible initial rapid recovery then slower (or sporadic) recovery.
the first two points are probably the most important to commit to memory (elaboratively rehearse it!)