Merchant Navy Enlistment

[VillageDuckpond]

Can anyone help me find the records for someone who joined the Merchant Navy in the early 1900's, please? Many years ago I was put in touch with a Welsh Mariners website and I am hoping there is something similar for British Mariners.

[seaweed]

There are no databases concerning the rest of the UK similar to the Welsh Mariners site which is only an on line index of 23,758 Welsh merchant Masters, Mates and Engineers active from 1800 to 1945 by and large not other seamen.
There is a website for Irish Mariners 1918-1921
http://www.irishmariners.ie/searchdatabase.php
 No Central Personal service records of Merchant Navy seamen were kept between 1857 and 1913. The Board of Trade in it's wisdom considered that the information contained within Logbooks and Crew Agreements would suffice.
Personal MN service records for the period of the first World War have been destroyed.
Find My Past has personal MN service  records 1918 to 1941. If you could find him there then you may be able to trace him by backtracking Crew Agreements but it's a drawn out and expensive exercise.
Crew Agreements for 1915 are on line
https://1915crewlists.rmg.co.uk/
The only other major on line  database of Crew Agreements is for the year 1881.
https://www.mun.ca/mha/1881/crews1881.php
Details of Officers  for the period may be contained in Lloyd's Captains Register.

[VillageDuckpond]

There are no databases concerning the rest of the UK similar to the Welsh Mariners site which is only an on line index of 23,758 Welsh merchant Masters, Mates and Engineers active from 1800 to 1945 by and large not other seamen.
There is a website for Irish Mariners 1918-1921
http://www.irishmariners.ie/searchdatabase.php
 No Central Personal service records of Merchant Navy seamen were kept between 1857 and 1913. The Board of Trade in it's wisdom considered that the information contained within Logbooks and Crew Agreements would suffice.
Personal MN service records for the period of the first World War have been destroyed.
Find My Past has personal MN service  records 1918 to 1941. If you could find him there then you may be able to trace him by backtracking Crew Agreements but it's a drawn out and expensive exercise.
Crew Agreements for 1915 are on line
https://1915crewlists.rmg.co.uk/
The only other major on line  database of Crew Agreements is for the year 1881.
https://www.mun.ca/mha/1881/crews1881.php
Details of Officers  for the period may be contained in Lloyd's Captains Register.

Thank you so much, seaweed, for your help. Disappointing about the lack of records but I did get a snippet of information from the Royal Maritime Museum.
VDP