There are two places in Philly where you can see aerial photos of the Eastside yard area- the Free Library on the Parkway and the Library Company of Phila near 13th and Locust. The photos in these collections range from the '30s to the '50s and were taken by the Aeroservice and Dallin companies.
They may not be identified specifically by name, since some of the Gulf Refinery photos will show parts of Eastside yard, for example.
The LCP, www.librarycompany.org
, has negatives while the Free Library only has prints. The State Archives in Harrisburg has the remainer of the negatives that LCP doesn't own. You can view the negatives by appointment, and they will scan any negs you'd like to have copies of (for a fee, of course). See the website for their current fee schedule.
I still have copies of the index numbers and can forward you my list, as it is helpful for the LCP to have the numbers in advance, since some of the neg's must be removed from cold storage and need 24 hours to re-acclimate to room temp.
Sorry for the 'late' reply, I haven't browsed this forum in a while....