Mr Chamberlain's mother, Josephine Knight-Jacobs, joined Saturday's protests.
She said: "I think what he is doing is brilliant. I am very proud of him. Too many people don't stand up enough in this country.
"I don't understand why they have to cut so many trees down."
A second protestor, who Gabriel named as Eddie Beaumont, has joined him in the tree.
Commentators on Oxford Times story are still against the protest, as well as students, the jobless and anyone else they can moan about.
Posted by: Steve, Oxford on 11:33am today
The thing is, as the Oxford students come back from their long Xmas holiday, they will only join this protest and make things a whole lot worse for everyone. #
"Amputate thieves hands" is spot on in his assesment of that fool up the tree. if people knew who he was they wouldn't wee on him if he was on fire!
so lets just haul him down, or tazer him, or something and get on with it.
Human rights gone mad! The other point is, people are dragging the Westgate re-development into this arguement.
Heard on the radio someone say that, but they were too posh for me to understand what they said!!
I have no comment to make about any allegations made about Mr Chamberlain.
I have to say, a lot of the Oxford Times commentators are, as The Art of the Possible from Evita had it, "slightly to the right of Atilla the Hun."
Then again, it's easy to say what you want when no-one knows who you are or can e-mail you.
Oxford Indymedia also carries a report than an activist was arrested while giving Gabriel Chamberlain water.
At about 2 AM on Sunday morning two activists went to Bonn Square to try to give the fenced-off tree protester, Gabriel, some water.
As one distracted the security, the other tried to throw a bottle to Gabriel, but unfortunately it wasn't a very good throw ;)
Police sitting in a nearby car quickly noticed and the bottle-thrower was arrested "on suspicion of littering".
Fortunately only about 3 hours was spent at the police station before the activist was released without charge - the police seemed to have changed their mind and decided it wasn't a prosecutable offence.
The arrestee was advised by a solicitor that whilst the arrest was potentially unlawful, pursuing legal action would likely only result in a different charge such as "public disorder".
An IPCC complaint may be made.
Some more photos from Saturday's protest.