Yes they were
The house that seemed affordable with no car payment was a little over $9K (down payment of $1800). Adding in a $50/mo car payment took the affordable house down to a little over $8K, less than half the price of the median home in 1970.
Was there a minimum wage worker sometime in 1970 who bought a house and a newish car? I'm sure there was. Was it typical to do so? I don't think so.
Refs: http://www.freddiemac.com/pmms/pmms30.html , https://news.ycombinator.com/item?id=29590190 , https://www.bankrate.com/calculators/mortgages/new-house-cal... (I used a 10x multiplier, so I modeled in the calculator someone making $14.50/hr, a median house of $170K rather than $17K, etc, and then divided them by 10 to cite the figures above.)
Wage: $7.25/h
per-month affordable: $362.50
median home price: $374,900
3.519% fixed, 30-yr
20% down
required monthly payment -> $1,350
In fairness, the comment chain you're responding to is talking about the thing you're responding to in your comment, but I think the increase in unaffordability at the minimum wage still speaks to the problem: while it wasn't likely to allow home ownership in the past, but it's even less possible now, and that translates up into the higher wages where people then might have afforded a home, but cannot now.
Plenty of maps have been drawn to show that minimum wage can't even afford to rent median 1-bed apartments.
You can look at these retired 70-something boomers driving nice cars, owning a house, and taking a couple trips a year and assume they lived on Easy Street their whole lives when in fact they were probably struggling to pay bills 40 and 50 years ago as well.