Was this all in the US? If so, that's broken. I've been permanently employed since 1998 in Australia and I've never earnt less than about $27 per hour, and even that was only in the very early / junior days. The exchange rate (US$ to $AU$) has always been approximately $0.60 to $0.80 US to $1 AU for almost all of that time, so I wonder why the US pays so little when you also don't get the benefits of affordable healthcare etc?
I’m pretty sure today entry level (non-union) factory work is around $15-$20 USD ($21.62-$28.82 AUD at current exchange rate) in most parts of the US. I wouldn't be surprised if it’s lower though in very rural, low income parts of the country like West Virginia.
Federal minimum wage is still $7.25/hr, hasn't changed in years but very few jobs today pay less than about 2x that, as people simply won't work for less. Even fast food pays about $15 in most places.