I was just looking on a passenger list from 9th January 1958 from Amsterdam to Australia and here we have:-
A. Joke (Surname do)
(ABBREVIATIONS- To save time, inspectors often used terms like “above,” “same,” “ditto” or even an abbreviation of “do” to indicate a repeated entry.)
I find this entry rather puzzling.
Is the A Joke entry of a serious nature.
