How can I find the names of men from Blyth Northumberland, who served with the Royal Engineers during W.W.1 ?

Extremely difficult. Ironically, if he was killed during the First World War, you have a good chance of finding his details, through a publication called 'Soldiers Died During the Great War' (this can be accessed on the website www.1837online.com).

If he survived the war, then your task is a lot harder. Surviving Army service records from the First World War are held at the National Archives in Kew (see www.pro.gov.uk). However, the operative word here is 'surviving', as these were among the records damaged in 1940 when a bomb hit the Arnside Street repository where they were stored. There is now no guarantee that your great grandfather's service record survives.

It's possible the Northumberland Country Records Office might have contemporary information on those who enlisted during the Great War, but this is something of a long shot.

If you give me his full name and service number, I can have a look for you?

Having his name and service number should get you the info you need. Contact British WW1 Army Records Office, London; dont know if they have a website, but they were very helpful ideed when I was looking for where my Uncle was killed in 1943.

try this:

http://www.remuseum.org.uk/rem_res_service.htm#bef...

or this:

The National Archives

Ruskin Avenue

Kew

Richmond

Surrey

TW9 4DU

Tel: 0208 876 3444

try the british legion or the sally army

See if this helps. If not it may lead you to where you need to go. Happy searching.

http://www.combs-families.org/combs/records/englan...

If he was killed try" war graves commission."

If not try "army records"

Good Luck.

This might help: http://www.army.mod.uk/royalengineers/associations...