A map of the southern end of the NYC north baker street yard can be seen at George Elwell's fallen flags website,
he has it listed under the Erie,
however I was born in Corning NY and know the map can only be the baker street yard by the size of the roundhouse. (The Sanborn maps confirm this also)
http://www.rr-fallenflags.org/el/dwg/erie-corn-e.gif
http://www.rr-fallenflags.org/el/dwg/erie-corn-m.gif
http://www.rr-fallenflags.org/el/dwg/erie-corn-w.gif
I have printed out these three maps and from my memories these maps can only be the NYC yard not any Erie yards. (The Erie never had a roundhouse at corning, but at Hornell instead.)
Pictures of part of the south side yard, (next to corning glass works, and the original Erie yards and alignment through south side Corning can be seen here
http://www.jon-n-bevliles.net/RAILROAD/corning.html
These pics were taken in the early 50's but shows much that can be useful to a modeler.
a link to Sanborn Insurance maps from the mid 1930's is available here.
http://www.jon-n-bevliles.net/RAILROAD/ ... t+1930.pdf
A link to a pic of the original coaling tower at Corning baker st yard is here;
http://home.earthlink.net/~railroad_tow ... tation.JPG
That image is the construction photo by the construction co that built it in 1909.
one real gem is the Panoramic image of the NYC yard at corning taken in 1915;
http://lcweb2.loc.gov/cgi-bin/query/h?p ... 1369%29%29
which shows exactly how the yard and engine facility was laid out, also roundhouse, double water towers, and side of powerhouse store house.
I used a partial close up, plus the builders photo
http://www.railroad-line.com/forum/data ... totype.jpg
to start a scratch build of the tower;
http://www.railroad-line.com/forum/data ... esized.jpg
As for motive power, the NYC used 2-8-0's from the turn of the century, which were bumped by both mikados and the 2-6-6-2's in the teens.
the 2-6-6-2's were bumped by the 4-8-2's in the late 20's and early 30's
Passenger ran to Lyons from Corning using mostly pacifics until 1935 (as per my mothers memory)
Corning would have local switchers (mostly 2-8-0's serving the large corning Glass works and the coal dealers and lumber yards (on Sanborn maps), plus coal trains from Pa coal mines to Syracuse, Rochester, Buffalo and points east. Also through freights from the Reading connection at Williamsport Pa to NYC
Hope this helps.
PS I am also modeling the NYC Pa Div, from south of corning to the north, however most of my concern in the corning area itself with the shared south side area they have side by side yards and a double track diamond, I have used the Sanborn maps plus the maps from fallen flags to plan from.