Sarah and Thomas Lines had married in the 1870s and had three children before Thomas died. Mary and Minnie had both been born a few years before their only son, who was named after his father, was born on 8 December 1885. In the first quarter of 1886, Sarah remarried, becoming the wife of Ralph Lowe, a man four years younger than her. When the 1901 Census was taken, they were living at 55 Norris Street, Stockport and Sarah had given birth to another three children.
He went to school at the British School on Chestergate and furthered his education by attending the Sunday school at the Edgeley Primitive Methodist Church. Like many local men, Thomas went to work in one of the hat making factories around Stockport and was employed as a felt hat finisher at the works of J Moores and Sons, Denton. In 1907, he married Gertrude Walker at St Augustine's Church, Brinksway and they are thought to have set up home at 22 Yule Street, Edgeley where, over the years, the couple would have three children (Polly, Thomas and Elsie).
When War was declared in August 1914, Thomas was quick to join the army, enlisting on 5 September into the 10th Battalion, Cheshire Regiment. He was given the service number 16313. His service papers, at the National Archives, show him to have been a short man, even for those times, standing at just under 5' 4" and weighing 110 pounds. He had a fresh complexion, blue eyes and sandy hair. A month after joining, Thomas was promoted to sergeant.
He may not have been the army's best choice to set an example of good behaviour to his men. On 6 February 1916, he received a severe reprimand for creating a disturbance in the sergeant's mess. Another severe reprimand came on 8 August when he was charged with using obscene language towards another NCO. In February 1916, he was again in trouble, in France, when a kit inspection revealed that he had lost his field glasses and had failed to report the loss. He was obliged to pay for a replacement and received another reprimand.
This didn't seem to affect his prospects as he was promoted again, to Company Sergeant Major in March 1916. Later in 1916, he undertook acts of bravery for which he was awarded the Distinguished Conduct Medal. The Stockport Express in its edition of 26 April 1917 reported that the men "went out to make an attack on the enemy who were a greatly superior number. During the attack, the officers and 130 men were killed or wounded, Sgt-Major Lines got the fifteen remaining men back to the trench and all night held the trench against the enemy."
There is some journalistic licence in this account as confirmed by the official citation included in the official history of the 25th Division of which the 10th Cheshires were part. "This warrant officer on Vimy Ridge in May 1916, when all the officers of his company had become casualties, took command of the company and, by building blocks he succeeded, with great gallantry, in holding up the enemy who had attacked the front line trenches. During the attack on Stuff Redoubt, he showed absolute disregard for personal danger and was the first to enter the enemy trenches, himself killing several Germans who were defending the trench." The attack on Stuff Redoubt was on 9 October 1916, as part of the Battle of the Somme. The local newspaper reported that he was the third member of the Finishing Department at the hatworks to be awarded the DCM
On 16 July 1916, Thomas was admitted to 12th General Hospital at Rouen. He had received a gunshot wound in his buttock. This will have been received during one of two attacks on German positions at Bazentin on either the 14th or 15th. He was treated at 45th Casualty Clearing Station - a field hospital - where his condition was stabilised before onward evacuation to Rouen. He returned to duty on 14 August. It was not long before he was back in trouble. On 23 November, he was charged with conduct prejudicial to good order and discipline. He had been found, after midnight, drinking alcohol and starting a disturbance in the company of private soldiers. It was, clearly, not a good thing for a senior NCO to be drinking socially and, no doubt, becoming unpleasantly drunk when men to whom he had to give orders were around. Shortly after this, he had a few days leave in the UK.
Unusually, he was transferred to the 13th Battalion in May 1917. Soldiers would regularly be transferred but usually only after a lengthy period of illness or recovery from wounds when it would be decide that the new unit was in greater need of repalcements. Thomas just seems to have been transferred. Perhaps, his commanding officer just got fed up with his poor discipline and thought he needed a fresh start.
Thomas had applied to become an officer in December of 1916 but this had been rejected. He tried again in March 1917 and was accepted. He became a 2nd Lieutenant on 25 September 1917 and was attached to the Lancashire Fusiliers.
On 18 February, Thomas would undertake another act of bravery for which he was awarded the Military Cross, when he commanded a party of men undertaking a raid on the enemy, near the Houthulst Forest, north of Ypres. The Regimental History records "The raid was ordered by the divisional commander with the object of obtaining identification and of securing machine guns and other booty and also samples of German food". Such raids were common features of trench warfare and , as indicated, were deigned to secure intelligence. The raiders were split into three groups and Thomas commanded a group of 32 men who had an objective of a road junction near to a building known as Renard Farm. They formed up at 11pm and advanced into No Man's Land under cover of an artillery and machine gun barrage. Thomas' party advanced and, as they came through the German barbed wire, they encountered a German post where there were several dead and injured soldiers. One unwounded German was taken prisoner. "Lines pushed on and, on entering the Forest, attacked a post about two hundred yards further on which comprised about nine Germans. Lines himself shot three men and took one prisoner, while Second Lieutenant J McClymont shot an officer and a man and took a prisoner. The Germans fought stubbornly but they appeared to have been taken by surprise, largely owing to the fact that the raiders had followed the barrage so closely."
Thomas died of wounds he had received. His burial so close to where the Fusiliers were suggests that he was injured either the day he died, or the previous day, before he could be taken to hospital. However, on the nights of 1, 2 and 3 April, parties of the 16th Battalion had attacked small posts held by Germans around the village of Ayette. The Regimental History notes that five officers were wounded over these days and it is possible that Thomas was one of them.