This is the 15829th most frequent Russian word.
проживавших
"Проживавших" means "those who lived" or "who were residing."
Here, 'проживавшие' is used to specify someone who lived or dwelled in the past.
Люди, проживавшие в этом доме, переехали на север.
The people who lived in this house moved to the north.
In this case, 'проживавшие' describes experiences during a past state of residing.
Советы, проживавшие последнюю зиму в лесу, оказались полезными.
The experiences of living the last winter in the forest turned out to be useful.
'Проживавшие' designates individuals who resided within a certain area in the past.