Andy,
Firstly, in the Central Index Register (Fourth Register of Seamen) those cards do contain mistakes and omissions, that is a given. Discrepancies over dates of birth are common so don’t be too strict there.
I have looked at the records and this is what I think based on many years looking at them.
On 12.4.1922 he is serving on the Liverpool registered, DAKOTIAN and has a CR1 card [which were filled in on issue of a Discharge Book, continuation or replacement]. It shows his Dis. A number is noted as 1072182. It is also noted that he does not appear to have been issued with his book so he is to be allocated a new Dis. A which is R158639. On issue with the new number his old one should be cancelled.
Unfortunately, for some reason, I cannot see the image of his 1939 Register but that number is clearly incorrect, if it refers to a ship number.
So, in conclusion then, all three cards – well, four actually, if you include the one with the cancelled number - are actually for the same man.
He appears to have served as follows but this list is probably not complete and you would need to look at Crew Agreements to back track his history from 1939. Any questions please feel free.
145923 – SAMARIA – 8.9.1925
133648 – AKAROA – 20.2.1931
145943 – LANCASTRIA – 28.4.1937
145943 – LANCASTRIA – 18.9.1937
147318 – CARINTHIA – 8.5.1937
145934 – ANDANIA – 8.4.1938
145934 – ANDANIA – 24.2.1939
Regards
Hugh