The Other Green Tender Engine?

Note: This is a Fan Theory, so please, reframe from telling me I am wrong, I will respect your opinion, if you respect mine.

Me and have been looking at evidence that there was another Green Tender Engine on Sodor, during 1920's. Many fans believe that in the first illustration of Edward's Day Out, we are introduced to Edward, Gordon, 98462, The First Red Engine, 87546 and Henry. However, I believe that the Green Engine is not Henry, but a completely different engine all together. Here is my theory/evidence on how I believe these are different engines.

1. Henry arrived before Gordon: Yes, we all know that Henry arrived before Gordon, but according to the wikia site, Henry arrived in 1922, and stops in the tunnel the same year, whilst Gordon didn't arrive on Sodor until 1923. But I recently asked the Fat Controller on Twitter how long Henry was in the tunnel, and he replied "Under 6 Months". So Henry couldn't have been in the sheds with Gordon. Now this is where things get complicated...98462 and 87546 arrived on Sodor the same year as Henry, and were shortly sent away. And they are at the sheds with Gordon, so let's assume that both 98462 and 87546 were sent away after Gordon arrives in 1923. Which does help the confusion.

2. No Steam Pipes: Throughout The Three Railway Engines, Edward and Gordon are seen with steam pipes on their boilers (execpt for Illistation 26). Now with Henry it's a different story, in both the last two stories, Henry doesn't have any pipes on his boiler, where in the first picture, this engine does. It may be another Dalby cock up, even again. We don't know, do we?

3. Edward in The Sad Story of Henry: Now we get to an interesting part. Edward was seen in the Sad Story of Henry, so this must have taken place before Edward was kept in the Shed. So, Henry wouldn't have been able to be in the sheds. 

4. Edward & Henry: Henry may have been vain about getting his paint ruined and likes to complain, but Henry isn't type of engine to tease and bully other engines without reason, Edward and Henry both have a strong friendship. In Edward, Gordon and Henry, Henry said he wanted to be painted blue, like Edward.

5. Desperate Times: The Fat Controller said he always wanted a GNR C1 Altantic, but ended up with Henry, who was a rejected hybrid of a C1 and a A1. So let's assume, after shutting Henry in a tunnel. The Fat Controller, bought an Atlantic, but since this green engine has drip on the front of its running plate, it may be a C4 or C5.

So, yeah, that's my theory, let me know what you guys think. Should I use this in a story? And I'll see you next time.