Will try to do the best I can to kick this off and provide some information, although most certainly subject to correction from those there and closer to it than I was.
This is a hard question to answer as over time many things changed but will give it a shot with focus on later years and into Conrail.
At some point by the time of CR in 1976 the Penn Central had abolished "yard jobs" and everything was designated as Traveling Switchers. Crews would perform their own yard work prior to setting out for their intended destination. After CR the EL side in Utica still had a Yard Job, but this was abolished in 1980. Sort of a big deal as there was both yard and road seniority rosters. So the abolishment of the yard position to a man without road seniority was a big deal.
Anyway, NYC, and later PC crews reported to Tower 30 after the big yard and roundhouse were shut down. They had lockers in the lower level of the tower. Power was serviced outside behind the building and so were cabooses with a elevated tank for their stoves. I don't remember a coal bunker there but there may have been for earlier years. A variety of cabooses but the transfer type was commonly seen there. Power was SW-1's and other SW or NW switcher units with a supplement of RS-3's or GP-7's, Dewitt Geeps and other units as needed or available such as U25B's, GP35's and even saw infrequent U25C's on the Lyons Falls.
There were at least the following jobs well into Conrail and these were basically bid jobs with assigned crews. However at some point in NYC or PC days? equity jobs were set up to accomodate the loss of work and allow for the brothers to work as promoted men or work their prior rights seniority so there was a mix where both St. Lawrence and M&M (ADK Division) crews had rights to the Lyons Falls job account of the loss of the work over the ADK Division over at Herkimer, Poland area. I think after a while that Mohawk men were also in this equity arrangement that rotated so that for certain blocks of time over a year period they had an exclusive right with their prior rights seniority. This may also have extended to other jobs and most certainly exteneded to the former EL side by 1981.
1. Lyons Falls Crew - I remember this as UT-41 and they ran to Lyons Falls and back - originally a St. Lawrence roster job, but later sharing equity with Mohawk, St, Lawrence and former EL after 1982.
2. Rome Local - These guys also ran to McConnellsville and Camden when that track was open and I recall it belonging to the St. Lawrence guys, although it may have shared equity with the Mohawkers too. I recall this as being combined with the Westshore job to Oneida in later years. Do not recall the UT- #. Might have been 30 something.
3. Little Falls job - a local working east. May have combined with the "Frankfort Job" - not too sure on that. A Mohawk job originally. This may have been UT-31?
4. Here is where I get hazy. There was a job that did Broad Street, NY Mills and ? - possibly went to Frankfort out the Westshore side as needed and maybe Oneida for the Westshore work. With consolidations and loss of traffic over the years jobs consolidated and the equity arrangement went into affect. After all these years it has gotten hazy. I recall a job designated as UT-95 taking care of some of this but whether that was actually the assigned number or not I don't know for sure as in late CR days (1982) UT-95 was called as an extra only as needed (like maybe several times / month) and would do whatever needed including the former EL side and Mills Branch. By this time it was guys working off the Utica extra board and could be ex EL guys or St. Lawrence or Mohawk men.
5. By 1980-81 era the ex EL train to Sangerfield (209-210) was under the jurisdiction of the Mohawk-Hudson division. This was former CR Susquehanna Division and it may have been when Susquehann Division was replaced by Lehigh Division that M-H got the Sangerfield EL run. Anyway it was re monikered as WV-UT-52 or simply UT-52 in the PC (NYC?) Travelling Switcher identification until NYSW came in 1982.
6. In NYC and PC days there was an M&M crew that ran up to Lake Placid. They ran over the St. Lawrence to Remsen (or later Snow Jct.) staying overnight on the way instead of a dog catch crew coming out to relieve them. On days they were not slugging up through the North Woods they may also have done the Newport & Poland work on the now disconected southern end of the M&M. Not sure on that or if it was a separate or extra job.
At some point in the late 1980's or early 1990's UT-41 was run out of Dewitt to Lyons Falls (I no longer remember what it was actually called by that time) and also assumed the Rome work. This did not seem to work out well and I think CR moved the job back to Utica before the MA&N took over in late 92 or 93. I could be wrong about that remove back to Utica but I do remember CR power and crews there, however they may have been only dog catching as when the job came out of Dewitt it seemed to fall down on the road a lot. I also do not remember, if I ever knew, when MA&N took over Lyons Falls & Rome.
That is the best of my recollections of later PC days into CR. Hopefully someone else can provide more detail and some earlier information in NYC days of the '50's and sixties.
Oh, and for times .... it varied somewhat and obviously varied over the years but most of the jobs went on sometime early to mid-morning and came back to roost just after the 2nd trick yard clerk / yardmaster went on duty (3pm-7pm at the upstairs of Tower 31) depending on the job, work load etc. At other times there were some night jobs like UT-52 went to a 3pm start for a short while in an effort to save motivepower and I recall riding a Lyons Falls job that left mid-late afternoon for a short while and got back in sometiime after midnight.
As years went by and business decreased not all jobs worked everyday other than UT-41 and 52. I recall 52 working Broad Street as needed instead of calling a UT-95. Traffic east got lighter and I have forgotten how that was handled by the mid -80's but know it became part of the equity work as in Fall 1982 there was an ex EL crew (or part of ..) that was working it at Little Falls. I am not sure if they or another job worked the Herkimer yard and what industries were still there like Agway or that went to an extra. I believe the last local working out of Utica as an assigned home terminal was UT-41 as the east work dried up, was torn out (WS to Frankfort) or was conveyed elsewhere (Little Falls work).