While I am not able to help with any further research I can say that Freeport seems to have been a busy place during WW2. My wifes grandfather was a carpenter on the Armed merchant cruiser Dunnottar Castle and from 1940 to 1942 it went from the UK to Freetown on seven occasions.
Below is a picture of Freetown that he had from that time and a Xmas card from the Dunnottar Castle.
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Attachment 35736