when were they last used?

Hi,
EBT has 6 ng mikes and two sg 0-6-0s left. When were they last used (before the shut down in April, 1956) and where are they now (for the switchers)? Which ones are currently operable?
NG
12
14
15
16
17
18
SG
3
6
ET&WNC had only one loco survive the scrapper. When was she last used in ET&WNC service?
12
If I am correct, West Side Lumber has two heislers and seven shays surviving. Where are they now and when were they last used by WSL ?
2
3
7
8
9
10
12
14
15
DSP&P - 191 is not currently operable. When was she last operated on the DSP&P (or its successor lines UPD&G etc)?
If I have over looked any exiting locomotives or have incorrectly listed one as still existing that is not, please make the correction.
Thanks so much.
Doug