The Great Jasper

Early in the century, high-spirited Irishman, Jasper Horn, drives a horse-drawn New York streetcar. But the electric era is beginning, so what's wrong with celebrating by having a drink while he's driving the tram? If it's only beer? Jasper and his wife, the teetotal daughter of a preacher, have a baby boy. His employer's beautiful wife finds herself attracted to the smartly-dressed son of Erin. A decade passes. The boss learns of the paternity of his son and fires Jasper. (imdb)