Private Tony Rawson, who died in Afghanistan in 2007, is one of those who has had a street named after him in Barking and Dagenham.
He was killed, aged 27, in a firefight with the Taliban while on patrol in Helmand Province.
At the time of his death, colleagues paid tribute to him as a friendly, passionate and highly respected member of the 1st Battalion The Royal Anglian Regiment.
Captain Dave Hicks, Second-In-Command of C (Essex) Company, said:
"Private Rawson epitomised not only the core values of the British Army, but also embodied the spirit of the British Infantry. Selfless, good-natured even in the face of adversity, and courageous under fire, he will be sorely missed by all his comrades within C (Essex) Company."
Lance Corporal Ben Lake, 11 Platoon, C (Essex) Company, said:
"Tony was the friendliest bloke you could ever meet, hence the nickname ‘Nicey’. If there was ever a problem, he was the first to offer his helping hand. If someone was feeling down he would go out of his way to help.
"He was a cracking soldier and an even better friend. He will be sorely missed by the whole of 11 Platoon and no doubt, the rest of the Battalion."
More top news
The prime minister was shouted at as she left the scene of the tragedy in which at least 79 people died.
Do you know a fundraiser with an inspirational story to tell? Find out how to nominate your ITV London Fundraiser of the Year 2017
The inaugural service left London Liverpool Street for Shenfield, Essex, on the existing TfL Rail route on Thursday morning.