The context for the conversation you'll hear in today's 60th-anniversary special edition of Overdrive Radio, conducted at the Great American Trucking Show in 2019, was twofold, centered around both driver training and history. 

Over the course of the 20th century, as you'll hear, the licensing required for a driver to operate interstate tightened. In the early days of motorized transport, an 18-year-old had no problem being licensed for interstate operation of what passed for the big trucks of the day. 

They weren't, of course, very big at all by today's standards. The picture here is one of of Walter Thompson of Shelburn, Indiana, grandfather of Jay Thompson, now an independent consultant to various trucking and natural gas interests through his Transportation Business Associates company.

As I wrote at the time of this conversation's original airing two years ago, Thompson’s been quite a resource for me when it comes to owner-operator and trucking history in general. He grew up in rural Indiana and starting his working career driving big trucks, a route taken by the generations of men in his family as well, all the way back to his grandfather.

Walter Thompson had a chauffer’s license enabling him to move freight as early as age 18, in 1917. And given debate continues around training and potentially opening up interstate operations, perhaps in a limited fashion, to some drivers younger than 21, Thompson's thoughts do more than just gives us a window on trucking's history through the lens of one family's experience.

We were also talking at the time about the potential potential for a pilot program for under-21 CDL drivers, then under intense debate, as we sat down to ferret out a little bit of the history there.

As Thompson says, history often repeats itself in various ways … 

Find more installments in Overdrive's 60th-anniversary series of lookbacks on history via http://overdriveonline.com/trucking-history

What came before the CDL? 18 years old and hauling interstate in 1917

The Overdrive Radio podcast is produced by Overdrive magazine, the Voice of the American Trucker for 60-plus years. Host Todd Dills -- with a supporting cast among Overdrive editors, contributors and others -- presents owner-operator business leading lights, interviews with extraordinary independent truckers and small fleet owners, and plenty in the way of trucking business and regulatory news and views. Access an archive of all episodes of Overdrive Radio going back more than a decade via this link: http://overdriveonline.com/overdrive-radio