USGS has a cool new site that lets you choose which topo map to see anywhere in the US.
Go to https://ngmdb.usgs.gov/topoview/viewer/#4/39.98/-100.06
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After a few seconds (at least on my computer) you get a window that has a place to enter a place at "search by location" on the top right. Enter "41.1141, -75.8677" and then "return". A menu of topo maps that cover that location comes up on the right. Scroll down that list until you see a "White Haven' 1947 or 1950 map (if you want to see the Berger Water Tank). The Scranton maps are low resolution and don't show it. Click on the name of the map, and the name of the map opens into a small window. Click on "Show" in that window and the maps opens up. YOu can left click/hold/drag to move around in the map.
You can then click on other map names and "open" to see them. TO get a list of maps for a new location, left click on the main map. I hope you remember what you are looking for, but it is fun anyway to explore around...
EDIT: I posted earlier that Berger water tank was not on the Lehigh Valley. But I forgot that after 1965 the LV and CNJ combined to give a single main up from Allentown to Wilkes Barre. From a mile or so north of White Haven up to Laurel Run, which included the former Berger Water Tank, it was the CNJ line which was used. So after 1965, LV traffic would have been going though Bergers too.