I found this passage describing the GP35 in the Lionel 2019 Big Book interesting:
"Following quickly on the heels of the GP30, EMD's GP35 quickly proved to be a much more improved and reliable locomotive than its immediate predecessor. Initially owned by dozens of locomotives around the country, through sales, mergers, rebuilds and leases, these venerable locomotives have worn over 100 different paint schemes in the past 50 years."
I did not know that locomotives could own other locomotives.