Final answer:
The individuals the Morrisons see twenty months later are not clearly identified in the context provided. They might be affected by post-war conditions or immigration enforcement. Without more information about the Morrisons, we cannot determine what exactly happened to these individuals.
Step-by-step explanation:
The question seems to refer to the individuals the Morrisons see twenty months later who likely are people affected by the outcome of wartime conditions or potentially immigration enforcement actions. However, this context alone does not provide enough information about these individuals or specifically what happened to them after the described events.
Based on the provided excerpts, the individuals encountered by the agents, including young girls and a woman trying to cross the border, are likely facing various challenges due to their immigration status. After the war or in the longer term, people like fruit pickers, factory workers, nurses, and ambulance drivers, who may have taken on roles of heightened importance during wartime, could encounter shifts in employment opportunities, changes in social status, and possibly repatriation. Unfortunately, without more specific information from the source material concerning the Morrisons, it is difficult to ascertain with certainty the circumstances of the people they would see twenty months later.