Jenani
First of all, as others have said, I can only offer my condolences on your loss.
The ‘heavier’ metal whistle is most likely a Chieftain by Phil Hardy. I have three and it fits their description (no mark other than a stamped key signature. Another way to differentiate is to look at the mouthpiece end. In a Chieftain, the mouthpiece is rounded on the sides and flattened on top.
On a similar Overton, the mouthpiece is flattened on both top AND sides.
Yes the Green one is a Silkstone B flat
I think the brushed metal (aluminum) one is a chieftain… I remember him talking about and showing me his two chieftains one was huge and the other was small… this is the small one (D) I gave the larger one to a very good friend of his after the funeral last hear who also played whistle.
My condolences on your loss, jenani. I have a Chieftain, and it sounds just like the whistle you described. Here are pics of mine, in case it will help you identify:
Best wishes,
Andrea
jenani,
I sent you another PM. You can reply by email as well, if that is easier for you.
Thanks,
aderyn_du
great picture 
yes that is exactly what it looks like.
Thank you… it’s my first. I call it Symphony In Silver-- the first movement is a little fuzzy, but it finishes well. 
Seriously though, I’m a pretty decent photographer but I never realized how difficult it was to photograph these shiny things that toot… the reflections were really a pain for my little point and shoot digital. Good thing I don’t rely on whistle photography for a living! 
Best of luck in finding the whistles good homes!!
Andrea