This lad is all probabilty Lithuanian or a 'Russian Pole' as they were known in the Lothians. About the turn of the century up to the outreak of WW1 thousands of Lithuanians arrived in Leith from Suwalki in Lithuania. They had been brought across to Scotland in empty coal ships which took coal from the Lothian Coal Company to the Baltic States and Hamburg, on the return journey they brought back their human cargo. They had been lied to in the main, having being told they would be taken to the United States.
On arrival at Leith they had 'hobsons choice' , homeless, jobless and stateless most took up the offer of a job and a house in one of the Lothian Coal Company Pits or one of the Lanarkshire pits. As a result in my home town of Newtongrange there were nearly 800 'Russian Poles' and thousands in Bellshill , Lanarkshire.
On the outbreak of war tehy had to register as aliens with the Police but as citizens of Russia they were classified as friendly, along with Ukranians and Latvians also in the village, a few Austrians were howevere interned at Edinburgh for a while.
From 1916 onwards a few of the men enlisted but in 1917 when Russia and Britain signed a treaty that allowed them to conscript men into their armies many of the men opted to return to Russia to serve, after the war some got caught up in the Lithuanian civil war and never returned.
The war memorial in Newtongrange bears the name of several of these men, the most recent Vasiliy Nikitenko MM (Ukranian) was added a couple of years ago after a campaign started by myself. amongst the others who served were
Pte Stanislaw Skortolskis 243177 Royal Field Artillery, "Y" 50th T.M. Bty. Killed in action
Pte Anthony Wincauskas 30758 45009 King's Own Scottish Borderers, Highland Light Infantry
Pte K Gerlius 36635 Scottish Rifles, 8th Battalion
Pte Klemis Poliskis 36636 Scottish Rifles, 8th Battalion Killed in action
Pte Juozas Sanalitis (Campbell) 42426 32518 Scottish Rifles, 9th Battalion and KOSB Killed in action
Pte K Makvitics 42427 Scottish Rifles
Pte Kristoff Makswitajtis 42427 Scottish Rifles
Pte Justinas Eringis 462077 Labour Corps
Pte Justines Tutlis 48699 Royal Scots , 12th Battalion att 27th Trench Mortar Battery Killed in action
Pte Justinas Tutlis 48699 Royal Scots , 12th Battalion att 27th Trench Mortar Battery
Pte Jnoses Roukas 48788 Royal Scots
Pte Victoras Kirvaitis 48790 Royal Scots
Pte Dudonis Inozas 48792 Royal Scots
Pte Stanislow Cuicionis 48793 Royal Scots
Pte John Banza 48794 657748 70620 Royal Scots, Labour Corps
Pte John Nicol (ALIAS) 48795 600400 Royal Scots, Labour Corps
Pte Jan Mikolajunas 48795 600400 Royal Scots, Labour Corps
Pte Charles Rukas 48803 Royal Scots
Pte Justinskis Wladislowas 48804 Royal Scots
Pte Jucob Djemesok 48805 616531 Royal Scots, Labour Corps
Pte Andrew Balkawick 48806 Royal Scots
Pte Jurjas Baranckas 48807 657750 Royal Scots, Labour Corps
Pte Wincas Jakanskas 556227 Labour Corps
Pte Jonas Dugilas 556228 Labour Corps
Pte Simonavicus Kazysimirus 556229 Labour Corps see Simonas Kazamekaitis
Pte Simonas Kazamekaitis 556229 Labour Corps
You might have think a bit 'out the box' with the spelling of the men's names , most were illiterate in English and spelling varied wildy.
Hope this assists you can see a bit more on my website
Edit did he end up in Russia with 10th Royal Scots who were raised in Linlithgow. Cancel this last bit 10RS went to Russia 1918 to 1919