Filmmaker Tom McGuigan met my ex-girlfriend (and everyone's favorite honorary Arizonan), Azami, at the National Hobo Convention in Britt, Iowa.
McGuigan's been working on a film project documenting the hobo and train-hopping culture, which is alive and well in America and Canada. His short film trailer can be found here at American Rail Riders. The footage in the beginning minute was taken by Azami on her trek with other hobos following the National Poetry Slam and the National Hobo Convention last August on her way back to Arizona. The rest of the video splices her film taken on the road and the rails and video shot by McGuigan at the National Hobo Convention. I saw much of Azami's hitchhiking and train hopping footage after she got back and it is pretty cool Hopefully McGuigan can get his film picked up by The History Channel or a film studio willing to turn it into a full-fledged documentary. Everyone who knows Azami knows she defines herself as both a burner (Burning Man participant/artist) and a hobo. 
What is a hobo?
"A hobo is a traveling worker. Tramps travel but don't work and a bum does neither."
I've not found a convincing explanation. Some say it derives from the term "hoe-boy," meaning farm hand, or "homo bonus," meaning "good man." Others speculate that men shouted "Ho, Boy!" to each other on the road. One particularly literate wayfarer insisted the term came from the French "haut beau." Whatever its origin, the word "hobo" became widespread in American vernacular during yet another major depression from 1893 to 1897. I sometimes joke that a hobo is a tramp on steroids. Hoboes were by and large more organized, militant, independent, and political than their predecessors. The widespread use of the word "bum" after World War II signals the end of this colorful subculture of transient labor.A hobo is a different class of homeless wanderer than a tramp or a bum, but there is a stratification based on intention and work ethic:
Tramps and hobos are commonly lumped together, but in their own sight they are sharply differentiated. A hobo or bo is simply a migratory laborer; he may take some longish holidays, but soon or late he returns to work. A tramp never works if it can be avoided; he simply travels. Lower than either is the bum, who neither works nor travels, save when impelled to motion by the police.
--H. L. Mencke "The American Language: 4th ed."
Well, there were endless squabbles about the differences between hoboes, tramps, and bums. One famous quip had it that the hobo works and wanders, the tramp drinks and wanders, and the bum just drinks. More accurately the tramp, the hobo, and the bum represent three historical stages of American homelessness, with the tramp coming first, in the 1870s, and the bum later, in the 1940s and 1950s.So chronologically between the two was the hobo. Hoboes mark the coming of age of America's tramp army. The end of the depression in 1878 did not mean the end of tramping. Like our homeless population today, the tramp army was resistant to upswings in the business cycle. By the 1890s, after twenty years on the road, tramping had matured to the point where it now possessed its own unique institutions, culture, and even politics—taken together, what later came to be called "hobohemia." ... ... I sometimes joke that a hobo is a tramp on steroids. Hoboes were by and large more organized, militant, independent, and political than their predecessors. The widespread use of the word "bum" after World War II signals the end of this colorful subculture of transient labor.
