My impression of the homes in the 61st and Market area are "NYC style rowhouses", not much room for vehicles. No garages, no alleys either. Homes are about 100 years old. St Donato's Church was founded in 1910.
Currently there are "garages" a block away, but we don't know if those are converted storefronts and what they were in the 1950s. When I saw the documentary about St Donato's, I had a hard time imagining those 1950's Italian working class families not owning vehicles.
However, wikipedia does give reference to garages in this area, although I don't really see them. There is street parking though and people and I assume many people who live there now own vehicles.