Martin Spellman

Jimmy, an idealistic and hard-working young man, has just arrived in New York City with dreams of making his fortune. Along the way he faces numerous obstacles, opportunities and temptations, but through it all, he considers the actions of his hero, Abraham Lincoln, for guidance. Will Jimmy see his dreams come true, or will he be another of the countless hopefuls chewed up and spit out by New York's mean streets? (imdb)

A skip tracer--someone who collects late payments from people who've purchased appliances, etc., or takes them back them when they don't pay--repossesses a small radio from a deadbeat who's skipped payments. What he doesn't know is that a gang that has stolen diamonds from a Hollywood movie star has stashed them inside the radio, and they start hunting for him. (imdb)

Actually, the sailor wants nothing to do with the boy, who we eventually find out is an orphan who ran away from the orphanage, trying to find a new Mom and Dad. The sailor, not knowing anything about the boy, thinks he'll be more successful hitchhiking alone back to his ship. It's the boy who has the idea of pretending to be the sailor's kid, jumping into his arms, pretending to be a sick kid, prompting a well-meaning woman to pick them both up. (imdb)