The Independent's Good List is inspired by features such as the Sunday Times' Rich List.
It recognises those "driven by an urge to make the world a better place" and also includes filmmaker Ken Loach, poet Benjamin Zephaniah and Bob Geldof.
Mrs Walker received a letter of apology earlier in the year from one of the young men convicted of killing her 18-year-old son.
She explained how she had received a letter from
Paul Taylor, 20, who was found guilty of killing her son with an ice axe in Merseyside on 29 July 2005.
After being found guilty, Taylor was given a life sentence, along with his accomplice, 17-year-old Michael Barton.
In an interview with BBC Five Live, Mrs Walker told that Taylor “expressed sorrow”. She also told how he repeatedly stated that he was “deeply sorry” in the letter.
Mrs Walker said, “He just can't imagine how we feel, but, like he said, he can't bring him back. I don't think he was coerced into writing it. It looks genuine, so I just have to accept that he was sorry.”
Anthony Walker was a committed and devout Christian, and was a youth leader at an Evangelical Alliance member church – Grace Family Church in Liverpool.
Mrs Walker, also a faithful Christian, had earlier this year said that she forgave her son’s killers.
According to the BBC, Gee Walker said she would not let her son's name be forgotten. She said, “His life is going to make a change.”