Well, your dates are probably about right judging from the pictures I have, but my pictures are all undated. Of course there are always questions that arise. Since we don't know what happened to depot #2 (I heard it burned), is the picture I "assume" to be depot #1 actually #1 or was it a temporary depot used between the demise of #2 and the building of #3. It appears to be a very primitive building (as most of the early ones were). Incidentally, I have pictures showing depot #2 in two different locations, so it was moved at some time during it history. / Ron
PS, if you really want to answer some long standing questions, see what you can find out about the evolution of the depots at Monon (Bradford), In., particularly before the Air Line was standard gauged and the name of the town changed (before the wye was installed to head for Chicago).