Robert, son of the mayor in Lawrenceville, Pennsylvania, leverages his social status into entitlement and arrogance. He fixates on Stephen Foster as a romantic rival for Jeanie MacDowell, sparking confrontations through physical altercations and verbal disputes over her affections. A childhood promise to marry Jeanie anchors their connection, yet Robert's abrasive pride strains it. His competitive ruthlessness surfaces when he wagers Jeanie's pendant against Stephen in a horse race, exploiting personal attachments for victory. As the narrative's "Veronica" archetype, Robert contrasts Stephen's gentleness with assertiveness and jealousy-driven actions.

Enlisting in the Union Army during the Civil War exposes Robert to hardship, catalyzing maturation tempered by lingering pride. Upon returning, his enduring affection and sense of obligation toward the childhood promise compel a marriage proposal to Jeanie. This intensifies emotional tension amid her evolving bond with Stephen. Desperation later drives Robert to morally ambiguous extremes: he joins a Christmas robbery at the MacDowell home. When Jeanie thwarts the plot through cunning, the furious robbers—including Robert—kidnap her for ransom. Jeanie's compassion toward an injured captor during this ordeal prompts a collective change of heart, marking Robert's nadir.

Subsequent growth leads Robert to accept Jeanie's choice of Stephen. He reconciles with their relationship, transitioning from rival to a figure of respect. His arc culminates in responsible community integration, leaving earlier antagonism behind as a respected adult.