Until 1928 John's occupation was merchant seaman in transportation.
Occupation Notes
Division within BT - Records of the Registrar General of Shipping and Seamen and successor BT 372 - Registry of Shipping and Seamen: Central Register of Seamen: Seamen's Records ('Pouches') BT 372/584 - Discharge A numbers R282526 - R282731
R282723 HARGEN J 19/02/1928 GLASGOW
Reference: BT 372/584/151 Description: R282723 HARGEN J 19/02/1928 GLASGOW Date: 1913-1972 Held by: The National Archives, Kew